P. v. Secretary of Health and Human Services ( 2021 )


Menu:
  •               In the United States Court of Federal Claims
    OFFICE OF SPECIAL MASTERS
    No. 16-1278V
    Filed: April 26, 2021
    ************************* *
    *
    L.P.,                       *
    *
    *                          TO BE PUBLISHED
    Petitioner, *
    *
    v.                          *
    *                          Influenza Vaccine; Postural Orthostatic
    *                          Tachycardia Syndrome (POTS);
    SECRETARY OF HEALTH AND     *                          Dismissal Decision
    HUMAN SERVICES,             *
    *
    *
    Respondent. *
    *
    ************************* *
    Andrew D. Downing, Van Cott & Talamante, PLLC, for Petitioner
    Daniel A. Principato, U.S. Department of Justice, Washington, DC, for Respondent
    DECISION ON ENTITLEMENT1
    Oler, Special Master:
    On October 5, 2016, L.P. (“Petitioner”) filed a petition for compensation under the National
    Vaccine Injury Compensation Program, 42 U.S.C. § 300aa-10, et seq.2 (the “Vaccine Act” or
    “Program”). The petition alleges that Petitioner developed postural orthostatic tachycardia
    syndrome (“POTS”) as a result of the influenza (“flu”) vaccine she received on September 25,
    2015. Pet. at 5-6, ECF No. 1.
    1
    This Decision will be posted on the United States Court of Federal Claims’ website, in accordance with
    the E-Government Act of 2002, 
    44 U.S.C. § 3501
     (2012). This means the Decision will be available to
    anyone with access to the internet. As provided in 42 U.S.C. § 300aa-12(d)(4)(B), however, the parties
    may object to the Decision’s inclusion of certain kinds of confidential information. To do so, each party
    may, within 14 days, request redaction “of any information furnished by that party: (1) that is a trade secret
    or commercial or financial in substance and is privileged or confidential; or (2) that includes medical files
    or similar files, the disclosure of which would constitute a clearly unwarranted invasion of privacy.”
    Vaccine Rule 18(b). Otherwise, this Decision will be available to the public in its present form. Id.
    2
    National Childhood Vaccine Injury Act of 1986, Pub. L. No. 99-660, 
    100 Stat. 3755
    . Hereinafter, for ease
    of citation, all “§” references to the Vaccine Act will be to the pertinent subparagraph of 42 U.S.C. § 300aa
    (2012).
    1
    Upon review of the evidence in this case, I find that Petitioner has failed to show that POTS
    is her correct diagnosis or that the influenza vaccine she received on September 25, 2015 caused
    her condition. The petition is accordingly dismissed.
    I.       Procedural History
    On October 10, 2016, Petitioner filed her Petition. ECF No. 1. She filed medical records
    and a statement of completion on December 19, 2016. ECF No. 14.
    On January 17, 2017, Respondent filed a Rule 4(c) Report, presenting his analysis of
    Petitioner’s claims and concluding this case is not appropriate for compensation under the terms
    of the Vaccine Act. ECF No. 16.
    On March 13, 2017, Petitioner filed an expert report from Dr. Jill Schofield as well as Dr.
    Schofield’s curriculum vitae. ECF No. 18, Ex 30-31. On March 24, 2017, Petitioner filed the
    medical literature associated with Dr. Schofield’s report. ECF Nos. 19-21, Exs. 32-49.
    On October 5, 2017, Respondent filed an expert report from Dr. Thomas Leist, Dr. Leist’s
    curriculum vitae, and the medical literature associated with his report. ECF No 28, Ex. A; Ex. A
    Tabs 1-2.
    On December 5, 2017, this case was assigned to my docket. ECF No. 32.
    On August 13, 2018, Petitioner filed a supplemental expert report from Dr. Schofield. ECF
    No. 36, Ex. 50. On April 29, 2020, and March 17, 2021, Petitioner filed additional medical
    literature in support of Dr. Schofield’s reports. ECF No 53, Ex. 56; ECF No. 62, Ex. 57.
    On October 15, 2018, Respondent filed a supplemental responsive expert report from Dr.
    Leist, and the associated medical literature. ECF No. 37, Ex. B; Ex. B, Tab 1.
    On August 20, 2019, Petitioner filed a Statement of Completion. ECF No. 48.
    On December 20, 2019, Petitioner filed her Motion for Decision on the Record. ECF No.
    49. On March 20, 2020, Respondent filed a Response. ECF No. 50. On April 29, 2020, Petitioner
    filed a Reply brief. ECF No. 54.
    On June 18, 2020, the parties filed a Status Report stating that the record in this matter was
    complete. ECF No. 57. This matter is now ripe for adjudication.
    II.      Medical Records
    A. Relevant Pre-Vaccination History
    Prior to her vaccination on September 25, 2015, Petitioner had a history of heart
    palpitations, exercise induced asthma, anxiety, scoliosis, allergic rhinitis, eustachian tube
    dysfunction, premenstrual and menstrual irregularities, iron deficiency anemia, Vitamin D
    2
    deficiency, and a sensitivity to sunlight. She had suffered from allergic rhinitis since the age of
    four, and she was diagnosed with exercise induced asthma in 2001. Ex. 10 at 17-19. In 2002,
    Petitioner had a left breast biopsy. Ex. 5 at 1. In September 2012, an x-ray of Petitioner’s spine
    revealed lumbar scoliosis measuring 20 degrees. Ex. 18 at 55.
    In the two years leading up to Petitioner’s alleged vaccine injury, Petitioner regularly
    visited various doctors with complaints of heart palpitations, back pain, allergy related symptoms,
    and menstrual issues.
    On February 27, 2013, Petitioner saw Dr. Yeash, her primary care physician, complaining
    of irregular heartbeats occurring daily, sometimes at night, which seemed to trigger anxiety. Ex.
    18 at 28. An EKG was non-diagnostic Id. at 29. Dr. Yeash assessed Petitioner with palpitations
    and referred her to a cardiologist. Id. at 28.
    On March 20, 2013, Petitioner saw Dr. Benedict, a cardiologist, complaining of heart
    palpitations mostly when sleeping or sitting still, usually occurring one week before and during
    her period and sometimes accompanied by a flushed or clammy feeling and lightheadedness. Ex.
    5 at 8-9. Dr. Benedict ordered an EKG, an echocardiogram, and a Holter heart monitor. Id. at 8.
    The results of the EKG and echocardiogram were non-diagnostic/normal. Id. at 11, 26.
    On April 15, 2013, Petitioner saw Dr. Yeash for a medication check. Ex. 18 at 26. Her
    bloodwork revealed low levels of Iron and Vitamin D. Dr. Yeash recommended supplements. Ex.
    18 at 52.
    On April 22, 2013, Dr. Benedict provided Petitioner with the results of her Holter monitor
    test. Ex. 5 at 2. Seven total events of “fluttering in the chest” were recorded over a period of 30
    days which did not correlate with premature atrial contractions (“PACs”)3. Id.
    Petitioner visited Dr. Yeash on May 6, 2013 complaining of fatigue and constipation. Ex.
    18 at 23. Dr. Yeash assessed Petitioner with anemia and premenstrual disorder and prescribed
    0.5mg of Alprazolam every eight hours or as needed. Id. at 24.
    Petitioner again visited Dr. Yeash on November 18, 2013 complaining of heavy periods,
    trouble sleeping and tinnitus. Ex. 18 at 21. Dr. Yeah assessed Petitioner with an iron deficiency,
    Vitamin D deficiency, metrorrhagia, tinnitus and insomnia. Id. He recommended that Petitioner
    undergo an endometrial ablation to relieve her heavy periods and perhaps resolve her iron
    deficiency. Id. Dr. Yeash recommended that Petitioner see an ENT for her tinnitus. Id.
    3
    Atrial Premature Complex is a single ectopic atrial beat arising prematurely, manifesting
    electrocardiographically as an abnormally shaped premature P wave, usually with a slightly increased PR
    interval. It occurs in normal hearts, sometimes associated with the use of stimulants, but may be associated
    with structural heart disease. Dorland's Illustrated Medical Dictionary. (33 ed. 2019),
    https://www.dorlandsonline.com/dorland/definition?id=66296 (last visited April 19, 2021) (hereinafter
    “Dorland’s”).
    3
    On March 26, 2014, Petitioner saw Dr. Schkade, an ENT, complaining of allergies and
    exercise induced asthma. Ex. 10 at 11. She reported an oral allergy to walnuts and tomatoes and
    that Nasacort made her anxious. Id. at 12. Dr. Schkade noted a history of rhinoconjunctivitus,
    pruritus and eustachian tube dysfunctions, which he indicted was probably secondary to her
    allergic rhinitis. Id. at 12.
    Petitioner returned to Dr. Schkade on April 12, 2014 for allergy testing and desensitization
    injections. Ex. 10 at 13. Skin testing revealed that she was allergic to grass and Dr. Schkade
    diagnosed her with chronic rhinitis due to non-allergenic symptoms in the winter. Id.
    On April 24, 2014, Petitioner presented to Westside Women’s Clinic complaining of heavy
    periods and insomnia due to having to get up at night to address her menstrual flow. Ex. 52 at 13.
    Petitioner also reported a lack of libido. Id. She was assessed with dysmenorrhea. Id.
    Petitioner saw Dr. Schkade on July 16, 2014 reporting a 50 percent improvement in her
    allergic rhinitis since she started desensitization injections. Ex. 10 at 21. She reported that Flonase
    changed her menstrual cycle and caused breast discomfort. Id. Dr. Schkade recommended
    continued immunotherapy and both a nasal and ocular antihistamine. Id.
    On October 15, 2014, Petitioner saw Dr. Schkade complaining of ear discomfort and a
    pruritic skin rash in sun exposed areas. Ex 10 at 23. Dr. Schkade noted that Petitioner’s asthma
    and allergic symptoms were under control and that her ear discomfort could be related to her
    eustachian tube dysfunction. Id. at 24. He recommended that she see a dermatologist for possible
    photosensitivity. Id.
    Petitioner visited Dr. Maybach as a new patient on December 3, 2014. Ex. 18 at 19.
    Petitioner reported having abnormal TSH levels but indicated she had never been on medication.
    Id. She attributed her iron deficiency to her heavy periods and reported suffering from constipation
    as a result of taking iron supplements. Id. Dr. Maybach assessed Petitioner with an iron deficiency
    (chronic anemia), Vitamin D deficiency, and metrorrhagia. Id.
    On February 11, 2015, Petitioner presented at Westside Women’s Care complaining of
    pain on her left side and excessively heavy periods. Ex. 21 at 6. Petitioner reported having tried
    every kind of birth control for her symptoms, but she reported they were either ineffective or
    caused side effects. Id. Petitioner rejected trying an IUD because she was concerned about
    hormone issues. Id. Her doctor found the pain on Petitioner’s left side to be consistent with
    constipation. Id. An ultrasound showed a normal uterus with no abnormalities. Id.
    Petitioner presented to Arvada Sports and Spine Group on April 8, 2015 complaining of
    left side low back pain for the past three to four weeks possibly due to falling while walking her
    dog. Ex. 11 at 1. Petitioner was also concerned that the pain might be related to her ovaries, internal
    organs, or pre-menopausal hormone issues. Id. She also reported an irregular heartbeat and
    constipation. Id. at 1-2. The therapist recommended a home exercise regime combined with
    physical therapy once a week for six to eight weeks. Id. at 4. The therapist noted that Petitioner
    “appeared to be anxious.” Id. at 2.
    4
    On April 10, 2015, Petitioner visited the Saint Anthony Hospital Emergency Department
    complaining of a reddened sharp stabbing left lower quadrant abdominal pain over the past one
    month as well as constipation. Ex. 25 at 5. The results of a pelvic ultrasound were normal. Id. at
    7. The attending physician doubted diverticulitis and considered constipation to be likely. Id. at 7.
    Petitioner presented to Hafner Chiropractic on April 14, 2015, complaining of sharp
    burning stabbing pain and stiffness radiating down her left buttock that started after a workout one
    month prior. Ex. 13 at 1. She reported having some anxiety and feeling hypermobile at times. Id.
    Petitioner treated with Dr. Hafner from April 2014 through October of 2015. See generally, Ex.
    13. Over the course of her treatment, she alternately reported her symptoms as either unchanged
    or improved. Id.
    On April 15, 2015, Petitioner retuned to Arvada Sports and Spine Group. Ex. 11 at 10. She
    reported having gone to the ER concerned about a “burst ovarian cyst,” and that she was feeling
    better after seeing a chiropractor yesterday. Id. at 10. An MRI revealed lumbar scoliosis and level
    4-5 degeneration. Id. at 11. The therapist again noted that Petitioner “appeared anxious.” Id.
    Petitioner treated with Arvada Sports and Spine Group from May 2015 through July 2015. See
    generally, Ex. 11. Over the course of her treatment, Petitioner rated her pain as a 1/10 and noticed
    that her pain seemed to coincide with her menstrual cycle. Id.
    Petitioner visited Westside Women’s Care on April 17, 2015 complaining of severe
    symptoms associated with premenstrual dysphoric disorder (“PMDD”), mainly anxiety, and stated
    to her doctor: “I am losing my mind.” Ex. 21 at 5. Petitioner reported that she had been diagnosed
    with PACs related to “hormones.” Id. Petitioner continued to resist any type of hormonal therapy
    and reported that she had a bad reaction to SSRIs. Id. She eventually agreed to try a low dose of
    Citalopram4 for her anxiety. Id.
    On June 10, 2015, Petitioner saw Dr. Schkade and recounted an episode of pruritus while
    on a trip to San Francisco. Id. at 27. She reported that a dermatologist told her she might have
    polymorphous light eruption. Id. Petitioner felt that her current treatment was adequate and did not
    feel the need to make any changes. Id.
    Petitioner returned to Westside Women's Care on June 16, 2015 complaining of issues with
    PMDD; that Citalopram made her more anxious and jittery; and that she thought she had a small
    umbilical hernia from straining due to constipation. Ex. 21 at 3. Her doctor refilled a prescription
    for Xanax; Petitioner refused to try 10 micrograms of birth control for PMDD. Id. Petitioner’s
    blood work indicated that she had a vitamin D deficiency. Id.
    On July 15, 2015, Petitioner saw Dr. Maino at Centura Health complaining of lower back
    pain and an umbilical hernia. Ex. 22 at 1. Dr. Maino recommended an MRI for her back pain and
    referred Petitioner to Dr. Brew. Id. at 3.
    4
    Citalopram hydrobromide is a selective serotonin reuptake inhibitor (SSRI), chemically unrelated to other
    SSRIs and consisting of a racemic mixture of two stereoisomers (S- and R-, the S-isomer being
    pharmaceutically active); used as an antidepressant, administered orally. Dorland's,
    https://www.dorlandsonline.com/dorland/definition?id=9949) (last visited April 19, 2021).
    5
    Petitioner visited Dr. Brew at Surgical Specialists of Colorado on August 3, 2015
    complaining of chronic constipation, palpitations and back pain. Ex. 15 at 1. Dr. Brew assessed
    Petitioner with a very small asymptomatic umbilical hernia; he recommended observation and not
    surgery. Id. at 3.
    B. Post-Vaccination History
    Petitioner received her flu vaccination at Costco in Westminster, Colorado on September
    25, 2015. Ex. 2 at 1-4.
    On October 6, 2015, Petitioner presented to Dr. Schkade and reporting having trouble with
    her ears for the past week. Ex. 10 at 30. She stated she was hearing a new lower tone in her left
    ear and it felt full like she couldn’t pop it. Id. Dr. Schkade noted increased post-nasal drainage and
    some facial swelling which could indicate a low-grade viral infection. Id. at 30-31.
    Petitioner presented to Taos Urgent Care on October 17, 2015 while in Taos, New Mexico.
    She stated that she awoke in the middle of the night with her heart racing, pressure in her left ear
    and tinnitus. Ex. 7 at 1. The results of her lab work and EKG were essentially normal, but she was
    advised to follow up with her cardiologist. Id. at 5.
    On October 20, 2015, Petitioner saw Dr. Hartemink, an ENT, reporting sudden hearing
    loss and a sense of fullness in her left ear that began three or four days prior. Ex. 3 at 1. She
    reported having a 20-year history of high frequency tinnitus in both ears but was hearing a new
    low frequency thumping in her left ear that had since resolved. Id. An audiogram revealed mild
    sensorineural low frequency hearing loss in the left ear. Id. at 2. Dr. Hartemink’s differential
    diagnosis was sudden sensorineural hearing loss (SSHL), unilateral, verses atypical Ménière’s
    disease. Id. at 1. Petitioner reported having issues with nasal steroid sprays, and Dr. Hartemink
    decided on a low dose of prednisone - 20mg 2x a day for 7 days, then one tablet per day for 14
    days. Id.
    On October 28, 2015, Petitioner saw Dr. Kreutzer, another ENT, for a second opinion. Ex.
    4 at 1. Petitioner reported having a 17-year history of high frequency tinnitus after suffering
    whiplash in a car accident and occasional pressure in her left ear for over a decade. Id. She reported
    a new low frequency sound in her left ear, fullness, and hyperacusis on October 1, 2015. Id. She
    denied having vertigo but did feel "spacey." Id. An audiogram showed resolution of the low
    frequency hearing loss, and Dr. Kreutzer’s differential diagnosis was either bilateral
    endolymphatic hydrops or Ménière’s disease as opposed to bilateral autoimmune inner ear
    disorder. Id. Dr. Kreutzer recommended a balance test, the results of which were unremarkable.
    Id. at 5. “The caloric results indicated a unilateral weakness in the left ear” indicative of a left
    peripheral pathology consistent with Ménière’s disease. Id.
    Petitioner saw Dr. Yeash on November 2, 2015 reporting that she completed a course of
    prednisone for ear issues and that she was having a lot of anxiety, elevated pulse, and mood swings.
    Ex. 18 at 16. She also reported a history of PACs. Id. Dr. Yeash recommended that Petitioner
    6
    follow up with Dr. Benedict. Id. Dr. Yeash prescribed 0.5mg of Xanax and instructed her to take
    either a half or whole tablet, every eight hours as needed. Id. at 17.
    On November 4, 2015, Petitioner saw Dr. Hafner for pain in her left hip. Ex. 13. at 19. She
    reported having increased panic attacks after being treated with steroids for an ear issue. Id.
    Petitioner visited Dr. Benedict on November 6, 2015 recounting her episode in Toas, New
    Mexico. Ex. 5 at 26, 38. Petitioner told Dr. Benedict that she had been treated with steroids for
    possible Ménière’s and “went crazy on these.” Id. at 26. Dr. Benedict noted that the incident in
    Taos occurred mid-cycle, and that Petitioner was still having periods and hot flashes. Id. Petitioner
    was exercising and reported having no palpitations in the past two weeks. Id. at 38. An EKG
    performed at Taos Urgent Care revealed a long QT which Dr. Benedict attributed to Petitioner
    being on antihistamines at the time. Id. A subsequent EKG was normal. Id. at 37. Dr. Benedict
    ordered a repeat Holter monitor. Ex. 5 at 36.
    On November 10, 2015, Petitioner saw Dr. Yeash and informed him that two ENTs had
    assessed her with possible Ménière’s disease. Ex. 18 at 14. Petitioner reported having dizziness
    but no vertigo. Id. Dr. Yeash recommended that she continue seeing Dr. Benedict and prescribed
    an anti-inflammatory for ongoing lower back pain. Id.
    Petitioner returned to Dr. Hartemink on November 12, 2015 reporting that her hearing was
    better and that the fullness was mostly gone. Ex. 3 at 5. She told him that the prednisone had caused
    her severe anxiety and that she was experiencing mood swings, sleep issues and menstrual issues.
    Id. Considering that Petitioner’s hearing issues had returned to normal after treatment with
    prednisone, Dr. Hartemink’s differential diagnosis was sensorineural hearing loss, unilateral, or
    Ménière’s disease. Id. at 6. Dr. Hartemink suggested a low salt diet and a prescription for dyazide.
    Id. Petitioner declined the medication because her cardiologist told her that dyazide would make
    her palpitations worse. Id.
    On November 17, 2015, Petitioner saw a third ENT reporting that she developed a
    humming sound in her left ear, hearing loss and hyperacusis four to six weeks prior. Ex. 17 at 4.
    She informed the ENT that she completed treatment with steroids but was still having anxiety,
    sleeping problems, unintentional weight loss, ringing in her ears/head noise, post-nasal drainage,
    and an irregular/fast/pounding heartbeat. Id. The ENT assessed her with tinnitus, sensorineural
    hearing loss, and labyrinth dysfunction. Id. at 6.
    On November 19, 2015 Petitioner visited Swedish Medical Center ER complaining of
    intermittent and worsening palpitations for the past month and an onset of paresthesia/tingling in
    her fingers earlier that day. Ex. 23 at 42, 49. She reported that she was working at her desk and
    couldn't get her heart to stop racing. Id. at 28. She informed the treating team that her cardiologist
    prescribed propranolol but she could not take it due to her asthma. Id. at 48. She reported having
    been recently treated with Prednisone which made her anxious. Id. at 42. She informed the treating
    team that her cardiologist ordered a Holter monitor, but that was she could not complete the testing
    due to an adverse reaction to the adhesive. Id. Her EKG and lab tests came back normal. Id. at 45.
    The treating physician noted, “discussed lab results with patient. Patient improved spontaneously.
    7
    Tachycardia and tingling resolved.” Id. at 46. The attending physician suspected some component
    of anxiety contributed to Petitioner’s symptoms and prescribed Diltiazem. Id.
    Petitioner returned to Dr. Yeash to discuss her heart issues on November 30, 2015. Ex. 18
    at 12. Dr. Yeash suspected that Petitioner’s palpitations were due to anxiety. Id. Nevertheless, he
    recommended that Petitioner continue taking propranolol as needed. Id. He prescribed letrozole
    for GE reflux, and recommended Pepcid at bedtime. Id.
    On November 30, 2015, Dr. Benedict provided Petitioner with the results of her Holter
    monitor testing. Ex. 5 at 51. The monitor recorded nine total events over the course of 14 days,
    and that Petitioner was in sinus bradycardia (less than 60bpm) 24% of the time and sinus
    tachycardia (greater than 100bpm) only 2% of the time. Id. at 52. Dr. Benedict concluded that her
    symptoms were not associated with dysrhythmia and recommended that Petitioner continue taking
    propranolol. Id.
    Petitioner returned to Arvada Sports and Spine Group on December 3, 2015 reporting that
    she had been feeling great until two or three months ago when she developed increased tinnitus,
    low back pain, left hip pain, and tingling of the pubic symphysis. Ex. 11 at 23. She rated her pain
    as a 1/10. Id. She also reported feeling constipated and that steroid treatment for possible Ménière’s
    caused her to feel ill, lethargic, and weak. Id. The physical therapist noted that Petitioner "appeared
    anxious." Id. at 23. She was referred to Dr. Sabin at Precision Orthopedics for evaluation of her
    hip and low back pain. Id. at 24.
    On December 4, 2015, Petitioner presented to Precision Orthopedics complaining of six
    months of lower back pain, intermittent left hip pain, and numbness/tingling. Ex 8 at 1. She also
    reported hearing loss, arrythmia, asthma, constipation, and anemia. Id. Dr. Sabin found no palpable
    trigger points. Id. at 2. An x-ray of Petitioner’s left hip appeared normal with no evidence of
    impingement or degeneration. Id. Dr. Sabin’s overall impression was “questionable hip
    impingement, left side.” Id. at 5.
    Petitioner returned to Arvada Sport and Spine Clinic on December 16, 2015 reporting
    improvement in her left hip and groin pain since her previous visit. Ex. 11 at 26. Petitioner rated
    her pain as 1/10. Id. She reported that she tested positive for hip joint dysfunction. Id. Her therapist
    noted that she “appeared anxious.” Id.
    On December 31, 2015, Petitioner returned to Arvada Sport and Spine Clinic and reported
    improvement in her left hip pain over the past two weeks, possibly due to a new mattress. Ex. 11
    at 28. She rated her pain as 1/10, was compliant with her home exercise regime, and noticed less
    tingling in her pubic region. Id. Her therapist noted that she “appeared anxious.” Id.
    Petitioner saw Dr. Yeash on January 15, 2016 reporting that she had not had a period for
    the last few months. Ex. 18 at 10. Dr. Yeash noted that Petitioner had some signs and symptoms
    of paroxysmal orthostatic tachycardia syndrome. Id. at 9. He noted that Petitioner was “fairly
    anxious and that may be a cause of her palpitations as well.” Id. For the first time, the record states
    that Petitioner’s history of palpitations was particularly related to standing. Id. at 10.
    8
    On January 20, 2016, Petitioner returned to Arvada Sport and Spine Clinic and reported:
    “Overall, I've been feeling really good. My exercises have been getting easier and I haven't really
    had too many symptoms so I was hoping to go through some new exercises in order to continue
    with my strengthening to keep my pain at bay.” Ex. 11 at 30.
    Petitioner met with a physician assistant at Dr. Yeash’s office on January 25, 2016 and
    reported that she was still having palpitations, and that it was becoming difficult for her to work.
    Ex. 18 at 7. Petitioner stated that she would like to see a cardiophysiologist and a neurologist, and
    specifically requested a referral to Dr. Jill Schofield at University of Colorado Hospital. Id. The
    PA noted that Petitioner remarked “on paper she looks good and physically she may look good,
    but she says inside she does not feel good.” Id.
    On January 26, 2016, Petitioner presented to Boulder Community Health ER complaining
    of “epigastric abdominal pain and early satiety” beginning in November 2015. Ex. 12 at 2.
    Petitioner’s husband reported that she began having abdominal pain and digestive issues after
    completing a 10-day course of prednisone for a eustachian tube dysfunction in her left ear. Id. All
    of her lab work came back normal and an examination revealed a benign abdomen, non-tender to
    palpitation. Id. The attending physician referred her to a gastroenterologist. Id. His differential
    diagnosis included gastritis, H. pylori, pancreatitis, peptic ulcer disease, celiac disease, and
    depression. Id. at 4.
    Petitioner saw Dr. Hartemink on February 2, 2016 complaining of dizziness and a
    lightheaded “rocking motion.” Ex. 23 at 9. She requested that Dr. Hartemink re-check her for
    vertigo. Id. She also reported the following new symptoms: heart palpitations, GI issues, bowel
    movement issues, increased heart rate when standing up, increased car sickness, and intermittently
    hearing her heartbeat in her left ear, especially when laying down at night. Id. Dr. Hartemink
    assessed Petitioner with (1) sensorineural hearing loss, unilateral, and (2) inactive Ménière’s
    disease. Id. at 10.
    On February 4, 2016, Petitioner saw Dr. Mandagere, an endocrinologist, for concerns about
    possible thyroid disease. Ex. 9 at 1. Petitioner reported having palpitations, alternating issues with
    diarrhea and constipation, general weight loss, heat and cold intolerance, poor sleep, sore throat,
    nausea, nighttime urination, diminished libido, abnormal periods, numbness/tingling and anxiety.
    Id. at 2. Dr. Mandagere noted that Petitioner had “nonspecific complaints that are not thyroid
    related.” Id. at 3. Petitioner’s TSH level was normal, “not even equivocal,” and Dr. Mandagere did
    not find an endocrine cause for her palpitations. Id.
    Petitioner visited Dr. Schkade to review her allergy and asthma treatment on February 9,
    2016. Ex. 10 at 34. She reported having a rapid heart rate that increased when she stood up,
    “although she did not appear to have any hypotensive symptoms.” Id. She reported that propranolol
    caused her dyspnea due to her asthma, “although she had not used her inhaler for exercise induced
    apnea in years.” Id. She also reported feeling flushed at times, having loose stools and headaches
    associated with her rapid heart rate. Id. She did not want to resume her allergy injections. Id.
    On February 10, 2016, Petitioner saw Dr. Moon, a neurologist, for a POTS evaluation. Ex.
    15 at 16. Petitioner was concerned about a possible autoimmune disorder and reported that she
    9
    started having palpitations in September 2015. Id. She reported treatment with steroids for fullness
    and hearing loss in her left ear in October 2015. Id. She reported that she then developed
    tachycardia upon standing up first thing in the morning, anxiety, panic attacks, lightheadedness,
    poor sleep, significant fatigue, indigestion, diarrhea, decreasing sweating, heat and cold
    intolerance, low grade headache, nausea, decreased appetite, and phonophobia. Id. She reported
    that tachycardia sometimes woke her up at night. Id. Dr. Moon assessed Petitioner with
    dysautonomia, migraine headaches and anxiety. Id. Dr. Moon did not see any clear evidence of
    POTS but recommended an MRI of the brain, a tilt table test, dysautonomia laboratory studies and
    a repeat trial of propranolol. Id.
    Petitioner saw a nurse practitioner at Rocky Mountain Gastroenterology on February 15,
    2016 where she complained of intermittent stomach burning, heartburn, nausea, gas, constipation
    and burping beginning after treatment with prednisone for possible Ménière’s disease. Ex. 6 at 1.
    She reported losing ten pounds initially but had regained the weight. Id. She noted tomatoes,
    onions, garlic, and fatty foods as triggers. Id. All of her lab work came back normal. Id. The NP
    suspected that prednisone caused her some esophagitis, gastritis and possibly duodenitis. Id. at 4.
    Petitioner elected conservative treatment with Zantac, Tums, H2 blocker and a restricted diet. Id.
    On February 25, 2016, Petitioner underwent a tilt table test at Swedish Medical Center.
    Ex. 23 at 19. The contemporaneous notes indicate that Petitioner showed no symptoms of POTS
    when tilted 70% for 40 minutes, and no signs of syncope. Id. Her heart rate remained in the low
    100s and her blood pressure was stable. Id.
    Petitioner underwent an MRI at Touchstone Imaging on March 10, 2016 pursuant to Dr.
    Moon’s orders. Ex. 3 at 12. The contemporaneous notes state that the results were normal with the
    exception of one indication of a prior microhemorrhage in the right cerebrum. Id.
    On March 15, 2016, Petitioner had a follow-up appointment with Dr. Moon regarding
    dysautonomia. Ex. 16 at 13. Dr. Moon noted that autonomic laboratory testing and extensive
    neuropathy laboratory testing were unremarkable; that the results of Petitioner’s tilt table test were
    not conclusive; and that her MRI was normal with the exception of was one small area of possible
    microhemorrhage in the right hemisphere. Id. Dr. Moon noted: “At this point we do not have
    definitive POTS.” Id. Dr. Moon’s differential diagnosis was dysautonomia, migraine headache and
    anxiety. Id. Dr. Moon recommended that Petitioner retry propranolol, explaining that a lower dose
    should not interfere with her asthma, and that Petitioner should not expect to see results for
    approximately one month. Id. Alternatively, Dr. Moon considered treating Petitioner for migraines
    and anxiety, which he noted could either be co-morbidities to her autonomic complaints or the
    actual primary problem. Id.
    Petitioner saw Dr. Yeash on March 18, 2016 for dizziness, vertigo, poor concentration,
    tachycardia when standing up, extreme fatigue, and weakness. Ex. 18 at 5. Petitioner requested
    paperwork for short term disability. Id. Dr. Yeash’s notes state that Dr. Moon had diagnosed
    Petitioner with dysautonomia and POTS. Id.
    On April 12, 2016, Petitioner saw Dr. Foster, an ENT, at University of Colorado Hospital.
    Dr. Foster noted that Petitioner had a history of low-grade dizziness with hearing loss, low pitched
    10
    tinnitus but no true vertigo, and premenstrual migraines. Ex. 24 at 20. Upon examination, Dr.
    Foster did not find any abnormalities. Id. at 21. Dr. Foster’s diagnosis was probable progressive
    vestibulopathy affecting the left inner ear. Id. Dr. Foster noted that the Petitioner’s migraines might
    be associated with Ménière’s disease, and that her low frequency sensory neuro hearing loss
    suggested hydrops5 but that recurrent spells were required to confirm. Id. She noted that
    Petitioner’s dizzy spells were premenstrual and advised Petitioner to avoid migraine triggers. Id.
    Petitioner saw Dr. Moon on April 13, 2016 and reported that she was feeling better;
    however, she stopped taking the propranolol because it gave her nightmares. Ex. 16 at 12.
    Petitioner indicated that she was taking riboflavin and magnesium and had found an exercise
    regimen that seemed to help, but she was still having anxiety. Id. Dr. Moon assessed Petitioner
    with dysautonomia and migraine headache. Id. In Dr. Moon’s opinion, the exercise regime would
    improve Petitioner’s dysautonomia as well as her vertigo. Dr. Moon noted that Petitioner had
    endolymphatic disease which can cause vertiginous dizziness separate from her dysautonomia
    issues. Id.
    On May 6, 2016, Dr. Yeash provided Petitioner with the results of blood work ordered on
    March 24, 2016. Ex. 18 at 32. The results were normal, but Dr. Yeash recommended that Petitioner
    continue taking an iron supplement. Id.
    On May 13, 2016, Petitioner saw Dr. Yeash to obtain paperwork necessary for her to return
    to work. Ex. 18 at 1. Dr. Yeash reported that Petitioner had no significant physical restrictions
    other than those related with her balance issues due to Ménière’s and vestibular issues. Id. Dr.
    Yeash noted that Petitioner’s POTS, Ménière’s, migraines and vertigo were all stable, and that she
    was no longer taking Xanax for anxiety. Id.
    Petitioner saw Dr. Schofield, on June 8, 2016. Dr. Schofield noted that Petitioner was
    previously healthy with underlying joint hypermobility until an acute onset of quite severe postural
    tachycardia syndrome, hearing loss and tinnitus one week following influenza vaccination. Ex. 24
    at 35. Dr. Schofield indicated that “her clinical picture is very suspicious for an immune mediated
    etiology possibly molecular mimicry secondary to influenza vaccination.” Id. Dr. Schofield’s
    diagnosis included antiphospholipid syndrome (“APS”) with hearing loss, tinnitus and migraines.
    Her differential diagnosis included celiac disease and autoimmune Ménière’s. Id. at 35. She noted
    that Petitioner had joint hypermobility but no chronic joint pain or spontaneous joint dislocation
    to suggest Ehlers-Danlos syndrome and thus did not refer Petitioner to a geneticist. Id.
    On June 11, 2016, Petitioner visited Dr. Schkade to review her allergy treatment. Ex. 10 at
    37. Petitioner did not want to continue her allergy shots. Id.
    5
    Ménière’s disease is a defined as hearing loss, tinnitus, and vertigo resulting from nonsuppurative disease
    of the labyrinth with edema. It may also be referred to as endolymphatic hydrops, labyrinthine hydrops, and
    recurrent aural vertigo. Dorland's, https://www.dorlandsonline.com/dorland/definition?id=70588 (last
    visited April 19, 2021).
    11
    Petitioner presented to Westside Women's Clinic on July 28, 2016 complaining of
    incapacitating menstrual migraines and vestibular migraines. Ex. 52 at 7. The doctor noted that her
    symptoms were likely due to a sudden drop in her estrogen level. Id. Petitioner was prescribed
    Prometrium for her menstrual symptoms. Id.
    On September 12, 2016, Petitioner presented at Westside Women's Clinic reporting that
    she noticed an improvement in her PMDD and PMS on the Prometrium. Ex 52. at 7.
    Petitioner saw Dr. Yeash on September 16, 2016. He assessed Petitioner with (1) POTS,
    (2) dysautonomia, (3) migraine with vertigo (4) Vitamin D deficiency, and (5) Vitamin B12
    deficiency. Ex. 54 at 23. Dr. Yeash directed Petitioner to continue taking metoprolol and
    prescribed 5mg Adderall to help with the neurovascular instability of POTS as well as 5mg Maxalt
    for headache. Id. Petitioner reported that she was generally feeling a lot better and was able to
    return to work. Id.
    On October 14, 2016, Petitioner again saw Dr. Schofield. She complained of fatigue and
    lack of focus. Ex. 28 at 4. Dr. Schofield recorded Petitioner as having a disorder of the autonomic
    nervous system, unspecified. Id. at 3. Dr. Schofield noted that Petitioner was working full time,
    and “possibly this is making her worse, but not nearly as severe as last year when she was trying.”
    Id. Petitioner was using an exercise bike at home but was still experiencing migraines once a month
    and oscillopsia6 when moving, but no dizziness or vertigo. Id. She tried taking aspirin but it did
    not help and caused bruising and nosebleeds. Id. Dr. Schofield prescribed a daily Vitamin D
    supplement and 10mg Vyvanse7 daily and suggested that Petitioner cut back from 40 hours per
    week to 30. Id. Petitioner declined. Id. Dr. Schofield recommended repeat APS testing. Id.
    Petitioner presented at Westside Women's Clinic on October 20, 2016 reporting that her
    lab work for APS was negative, but that she was working on controlling her symptoms of
    dysautonomia. Ex. 52 at 7.
    On March 16, 2017, Petitioner saw Dr. Schkade reporting that when she eats eggs for
    several days in a row it seems to cause some vestibular symptoms. Ex. 51 at 12.
    On April 10, 2017, Petitioner presented to Westside Women's Clinic indicting that she
    wanted to stop her Promethium because her specialist thought she had Ehlers-Danlos syndrome or
    possibly Ménière’s disease. Ex 52 at 5. She reported that an echocardiogram done four years ago
    6
    Oscillopsia is a symptom in which objects appear to wiggle, jerk, or move back and forth; it sometimes
    accompanies nystagmus, especially the downbeat type. Oscillopsia is also called oscillating vision.
    Dorland’s, https://www.dorlandsonline.com/dorland/definition?id=35681&searchterm=oscillopsia (last
    visited April 19, 2021).
    7
    Vyvanse is a central nervous system stimulant prescription medicine used to treat Attention-
    Deficit/Hyperactivity Disorder (ADHD) and Binge Eating Disorder (BED). RxList - The Internet Drug
    Index for Prescription Drugs, Medications, and Pill Identifier (2017), https://www.rxlist.com/vyvanse-
    drug.htm (last visited April 19, 2021).
    12
    was abnormal, that she had extreme laxity in the ligaments in her arms, and severe joint and muscle
    pain. Id. Petitioner reported that Prometrium made her symptoms worse. Id.
    On May 31, 2018, Petitioner saw Dr. Yeash for a medication evaluation. Ex. 54 at 14. Dr.
    Yeash assessed Petitioner with (1) anxiety (2) acid reflux disease (3) migraine with vertigo (4)
    POTS (5) Ehlers-Danlos, hypermobile type (6) neutropenia and (7) iron deficiency anemia. Id. Dr.
    Yeash noted Ménière’s disease had been ruled out. Petitioner felt that her vertigo was related to
    her migraines. Id. Dr. Yeash remarked that Petitioner was managing her POTS very well. Id.
    On July 19, 2018, Petitioner saw Dr. Yeah for a medication check. Ex. 54 at 11. Dr. Yeash
    assessed Petitioner with (1) dysautonomia (2) Ehlers-Danlos, hypermobile type (3) concentration
    deficit (4) acid reflux disease (5) decreased white blood cell count and (6) migraine with vertigo.
    Id. Dr. Yeah prescribed 10mg Vyvanse for concentration deficit related to dysautonomia and
    Ehlers-Danos syndrome. Petitioner tried Adderall and Concerta but reported that they were either
    ineffective or caused side effects. Id.
    Petitioner presented to Westside Women's Clinic on July 26, 2017 reporting that her
    physician thought she had a variant of Ehlers-Danlos syndrome, not involving the cardiovascular
    system, but causing laxity in her joints and ligaments. Ex. 52. at 6. She reported having no libido
    but reported that Promethium was helping with her PMDD as well as her dysautonomia. Id.
    Petitioner presented to Westside Women's Clinic for her annual visit on August 14, 2018.
    Ex. 52 at 1. Her only complaint was having no libido. Id. Her periods were normal. She was taking
    Vyvanse and a multivitamin and exercising on a regular basis. Id. She reported that she had been
    diagnosed with Ménière’s disease, but that she was not having many symptoms at that time. Id.
    On October 15, 2018, Petitioner saw Dr. Yeash for a medication check. Ex. 54 at 8. Dr.
    Yeash assessed Petitioner with (1) concentration deficit (2) muscle contraction headache (3)
    cervicogenic headache and (4) decreased white blood cell count. Id. Dr. Yeash noted that
    Petitioner’s muscle contraction headaches were thought to be secondary to cervicogenic disc
    disease. Id.
    On April 15, 2019, Petitioner saw Dr. Yeash for a medication check. Ex. 54 at 4. Dr. Yeash
    assessed Petitioner with (1) fatigue (2) concentration deficit (3) neutropenia (4) iron deficiency
    anemia (5) subclinical hypothyroidism and (6) daytime somnolence. Id. Petitioner complained of
    nonrestorative sleep, morning dry mouth, and excessive daytime somnolence. Id. Dr. Yeash
    recommended that Petitioner be evaluated for sleep apnea. Id.
    III.    Petitioner’s Affidavit
    Petitioner signed her affidavit on October 2, 2016. Ex. 1 at 4. In the affidavit, she stated
    that she received her flu vaccine on September 25, 2015 and the following week, she began to
    experience “a strange sensation” in her left ear. Id. at 1. She noted that the sensation was distinct
    from the tinnitus she had previously experienced, in that she felt “a low hum, vibrating noise in
    [her] left ear that would not go away.” Id.
    13
    Petitioner went on a trip to Taos soon thereafter, and during this trip, her feeling of fullness
    in her left ear and tinnitus continued to worsen. Ex. 1 at 1. She also felt that her heart was beating
    in an erratic manner and that it was racing. Id. at 2. She noted, “I had been diagnosed with PACs,
    or extra heartbeats, years before, but this sensation felt very different and I was worried.” Id.
    On October 19, 2015, Petitioner experienced hearing loss in her left ear and was diagnosed
    with possible Meniere’s disease. Ex. 1 at 2. She was prescribed steroids and her hearing recovered.
    Id.
    In early November 2015, Petitioner began to notice that her heart was racing with a change
    in position. Ex. 1 at 2. She indicated that her various symptoms impacted her work. Id. at 3.
    Petitioner stated that she was able to work “sporadically through November and December of 2015
    due to taking many vacation days, holidays, and a low number of clients.” Id. She further indicated
    that her symptoms continued to worsen into January 2016. Id. On January 25, 2016, Petitioner
    stated that she was forced to take a leave of absence from her job. Id.
    Petitioner indicated that she experienced the following symptoms at the worst of her illness:
    Orthostatic Tachycardia, palpitations or pounding heart, cold hands and feet,
    inability to regulate body temperature, sweating irregularities, constipation,
    diarrhea, loose stool, severe GERD, nausea, unexplained weight loss, nervousness,
    anxiety, depression, flushing, heat intolerance, increased blood pressure, hair loss,
    dry skin, adrenaline rushes, hearing loss, tinnitus, dizziness, motion intolerance,
    extreme motion sickness, hyperacusis, brain fog/cognitive struggles, blurred vision,
    tingling in my legs, feet, and face, exercise intolerance, fatigue, insomnia, and
    reduced stress tolerance.
    Ex. 1 at 3. Petitioner further stated that since the worst of her illness, she has seen some
    improvement, but she continues to experience daily symptoms and to have flares. Id. at 3-4.
    IV.      Expert Opinions and Qualifications
    A. Expert Qualifications
    1. Dr. Schofield’s Qualifications
    Dr Schofield graduated from the University of Colorado School of Medicine with Honors
    in 1995 and completed her internship and residency in internal medicine at the Johns Hopkins
    Hospital in Baltimore from 1995 to 1998. Ex. 31 at 2 (hereinafter “Schofield CV”). She worked
    for 16 years as an attending physician at St. Joseph Hospital in Denver where she developed an
    interest in autoimmune disease, specifically autonomic disorders in the antiphospholipid
    syndrome. Schofield CV at 1. As there is currently no formally accredited fellowship training in
    multi-specialty autoimmune disease, she designed a curriculum and completed training with
    Professor Yehuda Shoenfeld at the University of Colorado from January 2015 to July 2016. Ex 30
    at 1. She researches, publishes, and presents on the topics of autoimmune disease and
    14
    antiphospholipid syndrome. Schofield CV at 2-3. Of note, in 2014 she co-authored an article with
    Professor Shoenfeld, and Dr. Graham Hughes entitled Postural tachycardia syndrome (POTS) and
    other autonomic disorders in antiphospholipid (Hughes) syndrome (APS). 2014 LUPUS 23, 697-
    702 (2014). Id. at 2. Dr. Schofield maintains a clinical practice in antiphospholipid syndrome
    (“APS”) and the emerging area of autoimmune dysautonomia at the IMMUNOe Health and
    Research Center in Denver, Colorado. Id. at 1. She is also a Clinical Assistant Professor of
    Autoimmune Disease at the University of Colorado in the Department of Medicine. Id.
    2. Dr. Leist’s Qualifications
    Thomas P. Leist, MD, PhD, is Professor of Neurology, Chief of the Division of Clinical
    Neuroimmunology, and Director of the Comprehensive Multiple Sclerosis Center at Jefferson
    University in Philadelphia, PA. Ex. A, Tab 2 at 1 (hereinafter “Leist CV”). Dr. Leist also directs
    the Jefferson Medical College fellowship program in clinical neuroimmunology. Leist CV at 2.
    He earned a PhD from the University of Zurich in Switzerland and received his medical degree
    from the University of Miami School of Medicine. Id. at 1. Dr Leist completed his residency at
    Cornell Medical Center and Memorial Sloan-Kettering Medical Center in New York, and he
    trained as a fellow at the National Institutes of Health in Bethesda, MD. Id. He conducts research
    in multiple sclerosis and other autoimmune and infectious conditions of the CNS. He serves on the
    editorial board for Practical Neurology and is an ad-hoc reviewer for several journals
    including Neurology, Annals of Neurology, and Journal of Neuroimmunology. Id. He has been
    published in a multitude of peer-reviewed publications and frequently presents on the topics of
    multiple sclerosis and other autoimmune and infectious conditions of the CNS. Id. at 2-5, 6-11.
    B. Expert Opinions
    1. Dr. Schofield’s First Report
    Dr. Schofield opined that Petitioner’s flu vaccination in September 2015 triggered an
    autoimmune response that caused Petitioner to develop symptoms associated with an autoimmune
    clotting disorder known as antiphospholipid syndrome (APS). See generally, First Schofield Rep.
    According to Dr. Schofield, all of Petitioner’s clinical manifestations have been associated with
    APS, and “[t]he clear temporal association of her illness with the influenza vaccination and the
    time course of her antibody production and decrease in C4 level make it very likely that her illness
    arose as a complication of the vaccination.” Id. at 8.
    Dr. Schofield reported that prior to 2015, Petitioner “had enjoyed good health her whole
    life;” but that dramatically changed when she received her flu vaccination. First Schofield Rep. at
    3. Dr. Schofield’s review of Petitioner’s medical records revealed that one week after her
    vaccination, Petitioner began to experience tinnitus and hearing loss in her left ear which was
    diagnosed in late October 2015 as suspected Ménière’s disease. Id. In April of 2106, Dr. Schofield
    noted that another ENT diagnosed Petitioner with possible Ménière’s disease as well as
    progressive vestibular disorder. Id.
    Dr. Schofield observed that Petitioner developed a number of other systemic symptoms “at
    the same time” including vestibular migraines, cognitive dysfunction, tachycardia, heart rate
    15
    lability, adrenaline surges at night, insomnia, severe fatigue, flushing, heat intolerance, difficulty
    regulating her temperature, polyuria, nausea, paresthesia in her legs, orthostatic tachycardia and
    POTS. First Schofield Rep. at 3-4. Dr. Schofield noted that symptoms of dysautonomia such as
    migraine headaches, cognitive issues, sensorineural hearing loss and Ménière’s disease “may all
    occur in association with APS.” Id. at 5.
    Upon examination, Dr. Schofield discovered that Petitioner had other symptoms related to
    APS including reduced tear production, Livedo reticularis, joint hypermobility, abdominal bruit,
    and POTS. First Schofield Rep. at 5. Dr. Schofield referred to four articles, one of which she
    authored herself and another which she co-authored, in support of the theory that many of
    Petitioner’s symptoms are common in patients with APS. See Schofield, et al., Postural
    tachycardia syndrome (POTS) and other autonomic disorders in antiphospholipid (Hughes)
    syndrome (APS), 23 LUPUS 7, 697-702 (2014) (filed as Ex. 45, Ref. No 14) (hereinafter “Schofield-
    1); JR Schofield, Autonomic neuropathy—in its many guises—as the initial manifestation of the
    antiphospholipid syndrome, IMMUNOL RES. (2017) (filed as Ex. 46, Ref. No. 15) (hereinafter
    “Schofield-2”); DA Mouadeb & MJ Ruckenstein, Antiphospholipid inner ear syndrome, 115
    LARYNGOSCOPE 5, 879-83 (2005) (filed as Ex. 47, Ref. No. 16) (hereinafter “Mouadeb &
    Ruckenstein”); GRV Hughes, Heparin, antiphospholipid antibodies and the brain, 21 LUPUS 10,
    1039-40 (2012).
    When Dr. Schofield first evaluated Petitioner in June of 2016, she noticed “a clear temporal
    relationship to the onset of her symptoms and the influenza vaccine she received.” First Schofield
    Rep. at 4. Suspicious of an immune-mediated mechanism triggered by the vaccination, Dr.
    Schofield ran a number of tests to determine the cause of Petitioner’s POTS. Id. Initially, she found
    Petitioner to be “indeterminate or low positive at 18 MPL” for anticardiolipin IgM antibody, one
    of the antibodies associated with APS. Id. However, repeated testing came back negative. Id. at 6.
    Dr. Schofield observed that APS is also associated with a low C4 level and testing revealed
    that Petitioner had a low C4 level on three serial occasions, “suggestive of either active
    autoimmunity or a genetic predisposition to autoimmunity.” First Schofield Rep. at 6. By January
    of 2017, Petitioner’s C4 level had normalized, indicating that her autoimmunity was transient as
    opposed to genetic. Id. at 6-7. Dr. Schofield referred to several articles suggesting that “transient
    production of anticardiolipin antibodies and clinical manifestations of APS (including stroke) as
    occurred in [Petitioner’s] case has [sic] been reported in more than one publication.” Id. at 8; see
    also, Perdan-Pirkmajer, et al., Autoimmune response following influenza vaccination in patients
    with autoimmune inflammatory rheumatic disease, 21 LUPUS 2, 175-83 (2012) (filed as Ex. 34,
    Ref No. 3) (hereinafter “Perdan-Pirkmajer”); Agmon-Levin, et al., Influenza vaccine and
    autoimmunity, 11 ISR MED ASSOC J. 3, 183-5 (2009);11(3):183-85 (filed as Ex. 41, Ref. No. 10)
    (hereinafter “Agmon-Levin”); Toplak, et al., Autoimmune response following annual influenza
    vaccination in 92 apparently healthy adults, 8 AUTOIMMUN Rev. 2 134-38 (2008) (filed as Ex. 42,
    Ref. No. 11) (hereinafter “Toplak”).
    Dr. Schofield claimed that “it is well recognized that APS may be triggered by vaccination
    and infection.” Id. at 4. In support of that statement, Dr. Schofield referred to the Cruz-Tapias
    article, but offered no explanation or discussion of that article’s findings. See Cruz-Tapias, et al.,
    Infections and vaccines in the etiology of antiphospholipid syndrome, 24 CURR OPIN RHEUMATOL
    16
    4, 389-93 (2012) (filed as Ex. 49, Ref. No. 18) (hereinafter “Cruz-Tapias”). Dr. Schofield stated
    that the “most widely recognized mechanism by which infections or vaccines may trigger
    autoimmunity is that of molecular mimicry;” she further stated that there are “surprisingly few
    examples by which molecular mimicry has been demonstrated and the reality is that infection or
    vaccination-induced autoimmunity is likely much more complex in most instances.” Id. at 9. Dr.
    Schofield suggested other proposed mechanisms by which a vaccine may trigger autoimmunity
    such as cell damage that causes an infection, revealing antigens to the immune system that were
    previously hidden, as well as alteration of a host antigen such that it becomes recognized as foreign.
    Id. at 10.
    In summary, Dr. Schofield reported that “everything about [Petitioner’s] case is consistent
    with transient antiphospholipid antibody production and resultant complement activation
    secondary to the influenza vaccination, including the close temporal relationship of her symptom
    onset to the vaccination, the nature of her symptoms and the documented autonomic, hearing and
    vestibular dysfunction.” Id. at 10.
    2. Dr. Leist’s First Report
    Dr. Leist’s first report challenged Dr. Schofield’s finding of a close temporal relationship
    between Petitioner’s flu vaccination and the onset of her symptoms; Dr. Schofield’s statement that
    Petitioner was officially diagnosed with POTS in February 2016; and Dr. Schofield’s contention
    that a borderline positive anticardiolipin IgM titer is indicative of APS. Id. at 11-12.
    Dr. Leist did not find any notations in Petitioner’s medical records of any immediate or
    delayed side effects in the hours and days following her flu vaccination. First Leist Rep. at 11. Dr.
    Leist remarked that Petitioner had a long history of palpitations, eustachian tube dysfunctions,
    tinnitus, intermittent pressure/fullness in her left ear, asthma, significant premenstrual symptoms
    and irregularities, as well as an even longer history of back pain, hip pain, and joint hypermobility
    for which she sought care prior to and after the administration of her influenza vaccine on
    September 25, 2015. Id. at 14-15.
    Dr. Leist went on to observe that the contemporaneous records were not consistent with
    Dr. Schofield’s claim that Petitioner was “eventually officially diagnosed with POTS in February,
    2016 by tilt table testing done at Swedish Medical Center in Denver.” First Leist Rep. at 14. To
    the contrary, Dr. Leist noted that after receiving the results of Petitioner’s tilt table test, Dr. Moon
    specifically recorded: “At this point we don’t have definitive POTS.” Id.
    Using the National Institutes of Health’s diagnostic criteria, Dr. Leist also found that the
    results of Petitioner’s tilt table test did not warrant a diagnosis of POTS. First Leist Rep. at 13. To
    diagnose a patient with POTS, the National Institutes of Health requires “lightheadedness or
    fainting accompanied by a rapid increase in heartbeat of more than 30 beats per minute, or a heart
    rate that exceeds 120 beats per minute, within 10 minutes of rising.” Id. Prior to the start of the tilt
    test, [Petitioner]’s heart rate was measured while she was laying down, sitting, and standing. Id.
    Her heart rate did not increase by 30 beats per minute” Id. Dr. Leist observed that Petitioner
    remained asymptomatic during her test. Id at 14. “There was no significant change of the heart rate
    17
    between the start of the tilt table test (13:35, test minute 0; heart rate 102) and the subsequent time
    points (e.g., 13:45; test minute 10; heart rate 94). Id.
    Dr. Leist noted that Petitioner had twice undergone Holter monitor testing for palpitations
    that she reported as occurring at night, when sitting still, and during the week prior to and during
    her period. First Leist Rep. at 12. In 2013, after wearing a Holter monitor for 30 days, Petitioner’s
    cardiologist did not find any correlation with the seven events recorded by the monitor and
    Petitioner’s subjective feelings of “fluttering in the chest”. Id. In November 2015, after wearing a
    Holter monitor for 14 days, the results revealed that Petitioner’s baseline heart rate was 54 to 67
    bpm and that she remained in sinus rhythm throughout the monitoring period. Id. at 13. The Holter
    monitor test results, according to Dr. Leist, are further evidence that Petitioner did not fulfill the
    diagnostic criteria for POTS. Id.
    Finally, Dr. Leist took issue with Dr. Schofield’s reliance on the presence of
    antiphospholipid antibodies in support of the claim that vaccines can induce antiphospholipid
    syndrome, “which appears to be central to Dr. Schofield’s theory of how influenza vaccine could
    have caused [L.P.’s] condition.” First Leist Rep. at 14. Dr. Leist observed that Petitioner’s first
    test for anticardiolipin IgM on June 8, 2016, was negative. Id. at 11. (Exhibit 24 at 66). The second
    test on September 28, 2016, was also negative, and on October 14, 2016, a third test (performed
    on a specimen obtained in June 2016) came back borderline positive. Id. Dr. Leist pointed out that
    a borderline positive anticardiolipin IgM titer, by itself, is not clinically significant or indicative of
    APS. Id. at 12. Moreover, Petitioner’s anticardiolipin IgM titer “could have been elevated for many
    reasons other than, as alleged by Dr. Schofield, influenza vaccine given 9 months earlier.” Id. at
    11-12.
    Upon reviewing Dr Schofield’s medical literature, Dr. Leist found little to no relevant
    evidence supporting her opinions. For example, many of Dr. Schofield’s cited articles merely
    provided evidence of a temporal association between flu vaccination and other unrelated diseases
    such as various demyelinating disorders of the central nervous system, giant cell arteritis,
    autoimmune inflammatory rheumatic disease, polymyalgia rheumatica, subacute thyroiditis and
    dyserythropoiesis, Chug-Strauss syndrome, narcolepsy, and Guillain-Barré syndrome. Id. at 7; see
    also Exs. 32-38, 40, 44. Dr. Leist noted that the Jeffs article concerned variants of a flu vaccine
    other than Afluria, the vaccine that Petitioner received. Id. at 8; see also Jeffs, et al., Viral RNA in
    the influenza vaccine may have contributed to the development of ANCA-associated vasculitis in
    a patient following immunization, 35 CLIN RHEUMATOL 4, 943-51 (2016) (filed as Ex. 39, Ref No.
    8). Dr. Leist noted that the Agmon-Levin article discussed an increase in antinuclear
    antibodies and antiphospholipid antibodies in 92 healthy individuals up to six months after
    influenza vaccination; however, there is no evidence that Petitioner had antinuclear antibodies or
    antiphospholipid antibodies above the normal limit. Id. at 8; see also Ex. 41. The Toplak article
    also discussed an increase in antinuclear antibodies and antiphospholipid antibodies in 92 healthy
    individuals; however, Dr. Leist observed that none of the individuals studied was “reported to have
    developed clinical symptoms and the authors did not study fluctuation of the antibody markers
    over time in unvaccinated controls.” Id. at 8, quoting Ex. 42. The Abu-Shakra article found that
    influenza vaccination was safe for patients with lupus; although it may trigger the generation of
    autoantibodies, the effect was usually short lived and not associated with clinical significance. Id.
    at 8, see also Abu-Shakra, et al., Influenza vaccination of patients with systemic lupus
    18
    erythematosus: safety and immunogenicity issues, 6 AUTOIMMUN REV. 8, 543-46 (2007) (filed as
    Ex. 43, Ref No. 12). The Schofield-1, Schofield-2, and Mouadeb & Ruckenstein articles relating
    APS with other disorders such as POTS and Ménière’s did not include any mention of the flu
    vaccine. Id. at 8; see also Exs. 45, 46, 47, 48.
    Having reviewed Petitioner’s medical records, Dr. Leist opined “that Petitioner did not
    incur an injury due to influenza vaccine she received on September 25, 2015.” First Leist Rep. at
    15.
    3. Dr. Schofield’s Supplemental Report
    In response to Dr. Leist’s report, Dr. Schofield argued that Dr. Leist was not qualified to
    assess whether Petitioner has POTS or APS. Dr. Schofield’s review of Petitioner’s pre-vaccination
    medical history indicated that Petitioner may have been predisposed to autoimmunity, and Dr.
    Schofield refuted Dr. Leist’s argument that a low positive anticardiolipin IgM level is clinically
    insignificant.
    Dr. Schofield noted that while Dr. Leist may have great expertise in multiple sclerosis, he
    has no documented experience with autonomic disorders, APS, and vaccine induced immunity.
    Second Schofield Rep. at 1. In Dr. Schofield’s personal experience, physicians who specialize in
    multiple sclerosis have limited knowledge of the emerging field of dysautonomia “for which there
    is not currently a formal training program.” Id. Furthermore, Dr. Schofield stated that Dr. Leist’s
    first report demonstrates that he has limited knowledge of the diagnostic criteria for POTS and
    does not know how to interpret a tilt table test. Id.
    With respect to Petitioner’s tilt table test, Dr. Leist referred to the National Institutes of
    Health’s current diagnostic criteria for POTS; however, Dr. Schofield reported that “most
    specialists in the field use the 2015 Heath Rhythm Society Expert Consensus Statement on the
    Diagnosis and Treatment of POTS.” Second Schofield Rep. at 1; see also Sheldon, et al., 2015
    Heart Rhythm Society Expert and Consensus Statement on the Diagnosis and Treatment of
    Postural Tachycardia Syndrome, Inappropriate Sinus Tachycardia, and Vasovagal Syncope, 12
    HEART RHYTHM 6, 41-63 (2015) (filed as Ex. 57) (hereinafter “Consensus Statement”). The
    Consensus Statement, in part, characterizes POTS as “an increase in heart rate of >30 beats per
    minute (bpm) when moving from a recumbent to a standing position.” Id. Dr. Schofield’s review
    of the record revealed that Petitioner’s heart rate when laying and sitting at 1300 and 1302,
    respectively, was 68 bpm. Id. at 2. When she was titled upright at 1305, her hear rate quickly rose
    to 94 bpm and by the end of the test was 101, 107, 108 and 111 at the last four time points. Id. at
    2. “Thus, her HR rose from 68 to 111 – a 43 point increase” which Dr. Schofield claimed easily
    meets the criteria for POTS. Id. Regardless, Petitioner’s inability to “do her job, drive, etc. with a
    constellation of symptoms typical of that seen in POTS and lasting more than 3-6 months . . . is
    what makes the unequivocal diagnosis of POTS in the context of her abnormal tilt table test” Id.
    at 2.
    With respect to Petitioner’s pre-vaccination medical history, Dr. Schofield admitted that
    she did not originally review Petitioner’s prior records because Petitioner reported to Dr. Schofield
    “that she ‘was completely healthy’, i.e., any prior medical history did not seem significant enough
    to her to warrant spending time on it.” Second Schofield Rep. at 2. Nevertheless, having reviewed
    19
    Dr. Leist’s summary of the pre-vaccination medical records, Dr. Schofield did not find them to be
    inconsistent with the opinions set forth in her first report. Id. According to Dr. Schofield,
    Petitioner’s history indicates that she likely had mild underlying mast cell activation syndrome
    (MCAS),8 which is characterized by symptoms occurring in “two or more organ systems that are
    of a generally allergic and/or inflammatory theme.” Id. Dr. Schofield claimed that Petitioner’s
    problems with “allergies, asthma, anxiety, flushing, hives, rashes and palpitations are very
    characteristic of MCAS.” Id.
    Dr. Schofield performed further testing on Petitioner, and although Petitioner tested
    negative for MCAS, Dr. Schofield’s “clinical suspicion for this diagnosis remains high.” Id. at 3.
    Dr. Schofield explained that diagnosis can be difficult given that it “requires capturing chemical
    mediators that are released from overactive mast cells and these mediators begin to break down at
    room temperature within 1-2 minutes.” Id. at 3.
    Dr. Schofield went on to propose that “the presence of MCAS (suspected as the cause for
    the milder issues in [Petitioner]’s background), a disorder of the primitive immune system, may
    predispose to autoimmunity as the primitive and acquired arms of the immune system interact
    significantly.” Second Schofield Rep. at 6. Dr. Schofield reported that MCAS is often a
    comorbidity of dysautonomia, and that many of Dr. Schofield’s patients have both MCAS and
    autoimmunity. Id. at 2-3. Also, in Dr. Schofield’s experience, “many patients who develop severe
    autoimmune dysautonomia have much milder underlying symptoms suggesting orthostatic
    intolerance and/or immune dysregulations just as [Petitioner]’s history suggests.” Id. Those
    symptoms do not become severe until they are triggered by an event that activates the immune
    system, for example, a vaccination. Id. at 3. It is Dr. Schofield’s opinion that Petitioner likely had
    MCAS which predisposed her to developing an autoimmune disorder that was triggered by her flu
    vaccination given that “one week following her vaccination her symptoms became so severe that
    she struggled to function.” Id. at 3.
    Dr. Schofield stressed that even low positive/indeterminate anticardiolipin IgM levels can
    be significant, and “must be interpreted in the context of the patient’s clinical phenotype to
    determine whether they are important.” Id. at 3-4. A patient with a high titer but no signs or
    symptoms would only require observation; however, in a patient like Petitioner, with reported
    8
    Dr. Schofield raised the potential diagnosis of MCAS in her second report. Respondent filed the Akin
    article, which delineates the proposed criteria for mast cell activation syndrome: 1. Episodic multisystem
    symptoms consistent with mast cell activation; 2. Appropriate response to medications targeting mast cell
    activation; and 3. Documented increase in validated markers of mast cell activation systemically (i.e., either
    in serum or urine) during a symptomatic period compared with the patient’s baseline values. Akin C., Mast
    cell activation syndromes, 140 J ALLERGY CLIN IMMUNOL 2, 349-55 (2017) (filed as Ex. B, Tab
    1) (hereinafter “Akin”). Dr. Schofield conceded that Petitioner’s “first round of testing was negative” for
    MCAS. Second Schofield Rep. at 2. Dr. Schofield additionally described the interplay between MCAS and
    vaccination as follows: “MCAS--a disorder of the innate immune system--may theoretically predispose
    patients to a vaccine injury. As an emerging syndrome, there has not yet been a lot of research on many
    aspects of MCAS, so this remains a hypothesis…” Id. at 3. Dr. Leist did not find any support in Petitioner’s
    medical records for a diagnosis of MCAS. Ultimately, I find that Petitioner did not present preponderant
    evidence that she had MCAS and further that her purported underlying MCAS predisposed her to a vaccine
    injury.
    20
    autonomic and vestibular dysfunctions, even a low level of antiphospholipid antibodies becomes
    relevant, especially considering that Petitioner’s symptoms improved with antiphospholipid
    seroconversion. Id. at 4. The temporal relationship between the presence of those antibodies to
    Petitioner’s flu vaccination suggests that they were triggered by the vaccination. Id.
    Dr. Schofield stated that Petitioner’s clinical manifestation of Ménière’s disease was
    further evidence of the clinical significance of her anticardiolipin IgM levels. Second Schofield
    Rep. at 5. Dr. Schofield discussed the Mouadeb & Ruckenstein article which studied 168 adult
    patients suffering from progressive hearing loss with or without vertigo. Id. at 5; see also Mouadeb
    & Ruckenstein. The authors reported that “[f]orty-two patients (25%) had at least one elevated
    antiphospholipid antibody marker. . . [and of] the 42 patients, 64% (n = 27) met the diagnostic
    criteria for Ménière's disease.” Id. at 5, quoting Mouadeb & Ruckenstein. The authors of the study
    concluded that the “data support the hypothesis that antiphospholipid antibodies are involved in
    the pathogenesis of some forms of inner ear dysfunction . . .” Id. Dr. Schofield reports that “while
    we have a lot to learn about the mechanisms by which both inner ear disease and autonomic
    dysfunction may occur in the context of APS, the most likely mechanism is sludging or
    microthrombosis of the smallest blood vessels including those that perfuse the tiny small fiber
    autonomic nerves and the inner ear.” Id. at 7.
    With respect to Dr. Leist’s criticisms of her medical literature, Dr. Schofield responded
    that the purpose of the literature she cited “was to illustrate that multiple different autoimmune
    disorders--both neurological and non-neurological--may arise in the post vaccination period and
    were presumed to be triggered by the vaccination in those cases.” Id. at 6. According to Dr.
    Schofield, the literature evidences that most experts in the field use a period of 30 days to define
    temporal association. Id.
    In summary, Dr. Schofield opined as follows: “Based on the clear temporal relationship of
    the severe decline in [Petitioner]’s health to the influenza vaccination given in September 2015,
    the transient positivity of both antiphospholipid antibodies and the low C4 level (both seen in
    antiphospholipid syndrome) as well as the presence of clinical manifestations of antiphospholipid
    syndrome (autonomic dysfunction and inner ear disease), I believe that this represents a vaccine
    injury.” Second Schofield Rep. at 7.
    4. Dr. Leist’s Supplemental Report
    In his second report, Dr. Leist challenged Dr. Schofield’s opinions on the grounds that Dr.
    Schofield failed to demonstrate that Petitioner has POTS; failed to demonstrate that Petitioner has
    MCAS; failed to demonstrate that Petitioner has APS; and failed to establish that there is any
    mechanistic link between the influenza vaccine and sensorineural hearing loss.
    First, Dr. Leist refuted Dr. Schofield’s interpretation of Petitioner’s tilt table test. Second
    Leist Rep. at 3. Dr. Leist stated that the contemporaneous medical records do not support Dr.
    Schofield’s findings, and he agreed with the contemporaneous assessment. Id. Dr. Leist suggested
    that Dr. Schofield incorrectly combined Petitioner’s heart rate readings taken prior to the tilt table
    test with her heat rate readings taken after the tilt test had begun. Id. Dr. Leist noted that prior to
    the start of the tilt test, between 13:00 and 13:05, Petitioner’s heart rate was measured while laying
    21
    down, sitting and standing. Id. In Dr. Leist’s interpretation of the record, Petitioner’s heart rate
    increased from 68bpm to 94bpm from lying down to standing up – a change of 26bpm – which
    does not satisfy the criteria set forth in the Consensus Statement, Dr. Schofield’s preferred
    diagnostic reference. Id.; see also Ex. 57.
    Dr. Leist highlighted that the tilt table test did not start until 13:35, as clearly noted on the
    contemporaneous chart used to record Petitioner’s symptoms. Second Leist Rep. at 4. When the
    table was in the horizontal position, Petitioner’s heart rate was 102bpm. Id. As the table was raised
    to 70 degrees, Petitioner’s heart rate was measured every five minutes for 40 minutes. Id. Dr. Leist
    noted that Petitioner’s heart rate fluctuated between 89 and 111; again, not meeting the criterion
    set forth in the Consensus Statement. Id. at 3; Ex. 57.
    Dr. Leist noted that according to the Consensus Statement, the standing (or orthostatic)
    heart rate for individuals with POTS is often 120bpm or higher. Second Leist Rep. at 5; Ex. 57.
    Dr. Leist observed that Petitioner’s heart rate never elevated to 120 bpm, either before or during
    the tilt table test. Id. Additionally, Dr. Leist reiterated that the results of Petitioner’s Holter monitor
    test, obtained approximately 39-59 days after vaccination, were not indicative of POTS. Id. at 4.
    The results revealed that Petitioner had an average heart rate of 64 bpm, and that Petitioner’s heart
    rate was below 60 bpm 24% of the time and above 100bpm only 2% of the time. Id. According to
    Dr. Leist, the Holter monitor results are “also not supportive of a diagnosis of [POTS].” Id. at 5.
    Second, Dr. Leist stated that Dr. Schofield provided no discussion of the specific findings
    on which she based her diagnosis of Petitioner’s MCAS, and no discussion of how MCAS could
    be caused by the influenza vaccine. Second Leist Rep. at 5.
    Third, Dr. Leist stated that Dr. Schofield failed to demonstrate that Petitioner has APS. Id.
    at 1. He doubted Dr. Schofield’s theory that a borderline positive anticardiolipin level is clinically
    relevant based on the fact that she “appears to apply personal discretionary standard when
    entertaining diagnosis of anticardiolipin syndrome in [Petitioner]’ case. Id. at 2. He questioned her
    personal decision to no longer send samples to the University of Colorado Hospital laboratory for
    testing, and her criticisms of the Hospital’s laboratory practices, especially considering that the
    University of Colorado Hospital is accredited by all the relevant federal agencies, and is certified
    by the Colorado Department of Public Health which has an interest in ensuring the quality of
    laboratory testing. Id. at 1-2. It is Dr. Leist’s opinion that, “In absence of positive anticardiolipin
    antibodies it is unlikely that [L.P.] suffered from an anticardiolipin antibody related condition.” Id.
    at 5. Even assuming that a borderline test result is clinically significant, Dr. Leist noted that that
    Dr. Schofield failed to explain how a transient borderline anticardiolipin antibody level would be
    related to an influenza vaccination eight months earlier as opposed to some other intervening event.
    Id. at 1.
    Finally, Dr. Leist stated that Dr. Schofield failed to propose a mechanism by which
    “transient low level anticardiolipin antibodies can cause a clot forming, thrombotic condition of
    the inner ear.” Id. at 2. “Dr. Schofield neither provides evidence that this actually occurred in
    [Petitioner]’s case nor does she provide information that this is actually known to occur as a
    consequence of non-live influenza vaccine.” Id. at 2. Dr. Leist discounted Dr. Schofield’s reference
    to the Mouadeb & Ruckstein article on the grounds that the “article does not go beyond the
    22
    description that 42 of a series of 168 patients with sensorineural hearing loss had a least one
    antiphospholipid marker.” Id. According to Dr. Leist, the article does not report any association
    between sensorineural hearing loss and the influenza vaccine. Id. “It is not known that influenza
    vaccine causes induction anticardiolipin antibodies that in turn can cause clinical disease;” thus,
    Dr. Leist found Dr. Schofield’s theory to be nothing more than speculation. Id. at 5.
    In conclusion, Dr. Leist observed that [Petitioner] had conditions related to her heart, ears,
    balance, and lungs before September 25, 2015, and continued to suffer from those conditions after
    September 25, 2015. Second Leist Rep. at 5. Dr. Leist reiterated: “It is my opinion that [Petitioner]
    did not incur an injury due to [the] influenza vaccine she received on September 25, 2015 whether
    listed in the Vaccine Injury Table or not.” Id.
    V. Applicable Law
    A. Petitioner’s Burden in Vaccine Program Cases
    Under the Vaccine Act, when a petitioner suffers an alleged injury that is not listed in the
    Vaccine Injury Table, a petitioner may demonstrate that she suffered an “off-Table” injury.
    § 11(c)(1)(C)(ii).
    In attempting to establish entitlement to a Vaccine Program award of compensation for a
    off-Table claim, a petitioner must satisfy all three of the elements established by the Federal Circuit
    in Althen v. Sec’y of Health & Hum. Servs., 
    418 F.3d 1274
     (Fed. Cir. 2005). Althen requires that
    petitioner establish by preponderant evidence that the vaccination she received caused her injury
    “by providing: (1) a medical theory causally connecting the vaccination and the injury; (2) a logical
    sequence of cause and effect showing that the vaccination was the reason for the injury; and (3) a
    showing of a proximate temporal relationship between vaccination and injury.” 
    Id. at 1278
    .
    Under the first prong of Althen, petitioners must provide a “reputable medical theory,”
    demonstrating that the vaccine received can cause the type of injury alleged. Pafford, 451 F.3d at
    1355-56 (citations omitted). To satisfy this prong, a petitioner’s theory must be based on a “sound
    and reliable medical or scientific explanation.” Knudsen v. Sec’y of Health & Hum. Servs., 
    35 F.3d 543
    , 548 (Fed. Cir. 1994). Proof that the proffered medical theory is reasonable, plausible, or
    possible does not satisfy a petitioner’s burden. Boatmon v. Sec’y of Health & Hum. Servs., 
    941 F.3d 1351
    , 1359-60 (Fed. Cir. 2019).
    Petitioners may satisfy the first Althen prong without resort to medical literature,
    epidemiological studies, demonstration of a specific mechanism, or a generally accepted medical
    theory. Andreu v. Sec’y of Health & Hum. Servs., 
    569 F.3d 1367
    , 1378-79 (Fed. Cir. 2009) (citing
    Capizzano, 440 F.3d at 1325-26). However, special masters are “entitled to require some indicia
    of reliability to support the assertion of the expert witness.” Boatmon, 941 F.3d at 1360, quoting
    Moberly, 592 F.3d at 1324. Special Masters, despite their expertise, are not empowered by statute
    to conclusively resolve what are complex scientific and medical questions, and thus scientific
    evidence offered to establish Althen prong one is viewed “not through the lens of the laboratorian,
    but instead from the vantage point of the Vaccine Act’s preponderant evidence standard.” Id. at
    1380. Accordingly, special masters must take care not to increase the burden placed on petitioners
    23
    in offering a scientific theory linking vaccine to injury. Contreras v. Sec’y of Health & Hum.
    Servs., 
    121 Fed. Cl. 230
    , 245 (2015), vacated on other grounds, 
    844 F.3d 1363
     (Fed. Cir. 2017);
    see also Hock v. Sec’y of Health & Hum. Servs., No. 17-168V, 
    2020 U.S. Claims LEXIS 2202
     at
    *52 (Fed. Cl. Spec. Mstr. Sept. 30, 2020).
    The second Althen prong requires proof of a logical sequence of cause and effect, usually
    supported by facts derived from a petitioner’s medical records. Althen, 
    418 F.3d at 1278
    ; Andreu,
    
    569 F.3d at 1375-77
    ; Capizzano, 440 F.3d at 1326 (“medical records and medical opinion
    testimony are favored in vaccine cases, as treating physicians are likely to be in the best position
    to determine whether a ‘logical sequence of cause-and-effect show[s] that the vaccination was the
    reason for the injury’”) (quoting Althen, 
    418 F.3d at 1280
    ). Medical records are generally viewed
    as particularly trustworthy evidence, since they are created contemporaneously with the treatment
    of the patient. Cucuras v. Sec’y of Health & Hum. Servs., 
    993 F.2d 1525
    , 1528 (Fed. Cir. 1993).
    However, medical records and/or statements of a treating physician’s views do not per se
    bind the special master to adopt the conclusions of such an individual, even if they must be
    considered and carefully evaluated. Section 13(b)(1) (providing that “[a]ny such diagnosis,
    conclusion, judgment, test result, report, or summary shall not be binding on the special master or
    court”). As with expert testimony offered to establish a theory of causation, the opinions or
    diagnoses of treating physicians are only as trustworthy as the reasonableness of their suppositions
    or bases. The views of treating physicians should also be weighed against other, contrary evidence
    also present in the record. Hibbard v. Sec’y of Health & Hum. Servs., 
    100 Fed. Cl. 742
    , 749 (2011),
    aff’d, 
    698 F.3d 1355
     (Fed. Cir. 2012); Caves v. Sec’y of Health & Hum. Servs., No. 06-522V, 
    2011 WL 1935813
    , at *17 (Fed. Cl. Spec. Mstr. Apr. 29, 2011), mot. for review den’d, 
    100 Fed. Cl. 344
    ,
    356 (2011), aff’d without opinion, 475 Fed. App’x 765 (Fed. Cir. 2012).
    The third Althen prong requires establishing a “proximate temporal relationship” between
    the vaccination and the injury alleged. Althen, 
    418 F.3d at 1281
    . That term has been equated to
    the phrase “medically-acceptable temporal relationship.” 
    Id.
     A petitioner must offer “preponderant
    proof that the onset of symptoms occurred within a timeframe which, given the medical
    understanding of the disorder’s etiology, it is medically acceptable to infer causation.” de Bazan
    v. Sec’y of Health & Hum. Servs., 
    539 F.3d 1347
    , 1352 (Fed. Cir. 2008). The explanation for what
    is a medically acceptable timeframe must also coincide with the theory of how the relevant vaccine
    can cause an injury (Althen prong one’s requirement). 
    Id. at 1352
    ; Shapiro v. Sec’y of Health &
    Hum. Servs., 
    101 Fed. Cl. 532
    , 542 (2011), recons. den’d after remand, 
    105 Fed. Cl. 353
     (2012),
    aff’d mem., 503 F. App’x 952 (Fed. Cir. 2013); Koehn v. Sec’y of Health & Hum. Servs., No. 11-
    355V, 
    2013 WL 3214877
     (Fed. Cl. Spec. Mstr. May 30, 2013), mot. for review den’d (Fed. Cl.
    Dec. 3, 2013), aff’d, 
    773 F.3d 1239
     (Fed. Cir. 2014).
    B. Law Governing Analysis of Fact Evidence
    The parties agree that there are no medical facts in dispute with respect to Petitioner’s
    medical records and Petitioner’s timeline of symptoms. Joint Submission at 8, ECF No. 83; see
    also Ex. 11 (Petitioner Timeline of Symptoms). Accordingly, Petitioner’s medical records are
    presumed to accurate and complete and are afforded substantial weight. Cucuras, 
    993 F.2d at 1528
    ;
    24
    Doe/70 v. Sec’y of Health & Hum. Servs., 
    95 Fed. Cl. 598
    , 608 (2010); Lowrie v. Sec’y of Health
    & Hum. Servs., No. 03-1585V, 
    2005 WL 6117475
    , at *20 (Fed. Cl. Spec. Mstr. Dec. 12, 2005).
    C. Analysis of Expert Testimony
    Establishing a sound and reliable medical theory connecting the vaccine to the injury often
    requires a petitioner to present expert testimony in support of her claim. Lampe v. Sec’y of Health
    & Hum. Servs., 
    219 F.3d 1357
    , 1361 (Fed. Cir. 2000). Vaccine Program expert testimony is usually
    evaluated according to the factors for analyzing scientific reliability set forth in Daubert v. Merrell
    Dow Pharm., Inc., 
    509 U.S. 579
    , 594-96 (1993). See Cedillo v. Sec’y of Health & Hum. Servs.,
    
    617 F.3d 1328
    , 1339 (Fed. Cir. 2010) (citing Terran v. Sec’y of Health & Hum. Servs., 
    195 F.3d 1302
    , 1316 (Fed. Cir. 1999). “The Daubert factors for analyzing the reliability of testimony are:
    (1) whether a theory or technique can be (and has been) tested; (2) whether the theory or technique
    has been subjected to peer review and publication; (3) whether there is a known or potential rate
    of error and whether there are standards for controlling the error; and (4) whether the theory or
    technique enjoys general acceptance within a relevant scientific community.” Terran, 
    195 F.3d at
    1316 n.2 (citing Daubert, 
    509 U.S. at 592-95
    ).
    The Daubert factors play a slightly different role in Vaccine Program cases than they do
    when applied in other federal judicial fora. Daubert factors are employed by judges to exclude
    evidence that is unreliable and potentially confusing to a jury. In Vaccine Program cases, these
    factors are used in the weighing of the reliability of scientific evidence. Davis v. Sec’y of Health
    & Hum. Servs., 
    94 Fed. Cl. 53
    , 66-67 (2010) (“uniquely in this Circuit, the Daubert factors have
    been employed also as an acceptable evidentiary-gauging tool with respect to persuasiveness of
    expert testimony already admitted”).
    Respondent frequently offers one or more experts of his own in order to rebut a petitioner’s
    case. Where both sides offer expert testimony, a special master’s decision may be “based on the
    credibility of the experts and the relative persuasiveness of their competing theories.”
    Broekelschen v. Sec’y of Health & Hum. Servs., 
    618 F.3d 1339
    , 1347 (Fed. Cir. 2010) (citing
    Lampe, 
    219 F.3d at 1362
    ). However, nothing requires the acceptance of an expert’s conclusion
    “connected to existing data only by the ipse dixit of the expert,” especially if “there is simply too
    great an analytical gap between the data and the opinion proffered.” Snyder, 88 Fed. Cl. at 743
    (quoting Gen. Elec. Co. v. Joiner, 
    522 U.S. 136
    , 146 (1997)). A “special master is entitled to
    require some indicia of reliability to support the assertion of the expert witness.” Moberly, 592
    F.3d at 1324. Weighing the relative persuasiveness of competing expert testimony, based on a
    particular expert’s credibility, is part of the overall reliability analysis to which special masters
    must subject expert testimony in Vaccine Program cases. Id. at 1325-26 (“[a]ssessments as to the
    reliability of expert testimony often turn on credibility determinations”).
    D. Consideration of Medical Literature
    Although this decision discusses some but not all of the medical literature in detail, I
    reviewed and considered all of the medical records and literature submitted in this matter. See
    Moriarty v. Sec’y of Health & Hum. Servs., 
    844 F.3d 1322
    , 1328 (Fed. Cir. 2016) (“We generally
    presume that a special master considered the relevant record evidence even though [s]he does not
    25
    explicitly reference such evidence in h[er] decision.”); Simanski v. Sec’y of Health & Hum. Servs.,
    
    115 Fed. Cl. 407
    , 436 (2014) (“[A] Special Master is ‘not required to discuss every piece of
    evidence or testimony in her decision.’” (citation omitted)), aff’d, 601 F. App’x 982 (Fed. Cir.
    2015).
    VI.      Analysis
    Because Petitioner does not allege an injury listed on the Vaccine Injury Table, her claim
    is classified as “off-Table.” As noted above, to prevail on an “off-Table” claim, Petitioner must
    prove by preponderant evidence that she suffered an injury and that this injury was caused by the
    vaccination at issue. See Capizzano, 440 F.3d at 1320.
    In certain cases, the appropriate first step is to determine the precise nature of a petitioner's
    injury before engaging in the Althen analysis. Broekelschen, 
    618 F.3d at 1346
    . An injury which
    predates vaccination can defeat a Vaccine Program claim entirely. Shalala v. Whitecotton, 
    514 U.S. 268
    , 274-75 (1995) (Vaccine Act claimant who demonstrates she experienced symptoms of
    injury after receipt of vaccination does not succeed in her claim if the evidence indicates that she
    had symptoms of injury before her vaccination); Locane v. Sec'y of Health & Hum. Servs., 
    99 Fed. Cl. 715
    , 727 (2011), aff'd, 
    685 F.3d 1375
     (Fed. Cir. 2012) (finding that petitioner's Crohn's disease
    began prior to her vaccinations and therefore vaccine causation could not be established).
    A. The Expert Opinion Evidence
    In weighing the persuasiveness of opinion testimony, special masters may consider the
    background of the expert who is offering an opinion. See Snyder v. Sec'y of Health & Hum. Servs.,
    
    553 F. App'x 994
    , 1000–02 (Fed. Cir. 2014) (special master's finding that respondent's experts
    were more persuasive due in part to their current practice in neurology compared to petitioner's
    expert who had no recent practice was not arbitrary or capricious); see also Locane, 
    99 Fed. Cl. 727
    . This flows naturally from a special master's duty to evaluate expert credibility in the process
    of weighing the evidence. Porter v. Sec'y of Health & Hum. Servs., 
    663 F.3d 1242
    , 1250 (Fed. Cir.
    2011) (“[t]he Federal Circuit has unambiguously explained that special masters are expected to
    consider the credibility of expert witnesses in evaluating petitions for compensation under the
    Vaccine Act”). I have evaluated the opinions of both experts in this case and find that Dr. Leist is
    the more persuasive of the two.
    Dr. Leist is a board-certified neurologist with a Ph.D. in biochemistry. See Leist CV at 1.
    He is a professor of Neurology at Thomas Jefferson University and has been on faculty at that
    institution for more than 20 years. 
    Id.
     Among other positions, he currently serves as the Chief of
    the clinical neuroimmunology division.
    Dr. Schofield is a physician who is board certified in internal medicine. See Schofield CV
    at 3. During her time as an attending physician at St. Joseph Hospital in Denver, Dr. Schofield
    stated that she developed an interest in autoimmune disease. First Schofield Rep. at 1. Based on
    this interest, Dr. Schofield completed an informal (not accredited) fellowship training program in
    multi-specialty autoimmune disease from January 2015 through July 2016. Id. at 1-2. During this
    time, she also started her own clinic involving dysautonomia and antiphospholipid syndrome
    26
    (hereinafter “APS”). Id. at 2. She currently works as a staff physician at the IMMUNOe Health
    and Research Center where she performs clinical work in APS and autoimmune dysautonomia. Id.
    Although Dr. Schofield has experience in the field of dysautonomia, she is not a
    neurologist. On the other hand, Dr. Leist has extensive medical training, including a three-year
    neurology residency at the Cornell Medical Center and the Sloan Kettering Memorial Cancer
    Center. Leist CV at 1. This three years of formal training, in addition to his 20 plus years of work
    as a neurologist, and his board certification in neurology all render him the more persuasive of the
    two experts, especially as his opinion relates to a condition that falls in the field of neurology as
    opposed to internal medicine.
    B. There is not Preponderant Evidence that Petitioner Suffers from POTS9
    The first question to be addressed is whether petitioner’s medical history supports a finding
    that she suffered from POTS. For the reasons discussed below, I find that it does not.
    Sheldon, et al. defined POTS as follows:
    POTS is a clinical syndrome usually characterized by (1) frequent symptoms that
    occur with standing, such as light-headedness, palpitations, tremor, generalized
    weakness, blurred vision, exercise intolerance, and fatigue; (2) an increase in heart
    rate of ≥30 beats per minute (bpm) when moving from a recumbent to a standing
    position…; and (3) the absence of orthostatic hypotension (>20 mm Hg drop in
    systolic blood pressure).
    9
    I will note at the outset that the precise nature of Petitioner’s injury as alleged throughout this case is
    unclear. The petition repeatedly uses the term “adverse reaction” to describe Petitioner’s injury. See Pet. at
    1, 7. The petition also states that
    At the worst of her illness, [L.P.] experienced the following symptoms: Orthostatic
    Tachycardia, palpitations or pounding heart, cold hands and feet, inability to regulate body
    temperature, sweating irregularities, constipation, diarrhea, loose stool, severe GERD,
    nausea, unexplained weight loss, nervousness, anxiety, depression, flushing, heat
    intolerance, increased blood pressure, hair loss, dry skin, adrenaline rushes, hearing loss,
    tinnitus, dizziness, motion intolerance, extreme motion sickness, hyperacusis, brain
    fog/cognitive struggles, blurred vision, tingling in her legs, feet, and face, exercise
    intolerance, fatigue, insomnia, and reduced stress tolerance.
    Id. at 6. This list of conditions is reiterated in Petitioner’s affidavit and in her Motion for a Decision on the
    Record. See Ex. 1 at 3; Pet. Motion at 18. However, in her Reply Brief, Petitioner argues that she has met
    Althen prong one and has shown that vaccination can cause POTS (stating “the growing body of medical
    literature since this case was filed in 2016 increasingly suggests an autoimmune basis for POTS.”). See
    Reply at 7-8. Further, Dr. Schofield opined as follows: “During my initial evaluation, there was a clear
    temporal relationship to the onset of her symptoms and the influenza vaccine she received and I was
    suspicious of an immune-mediated mechanism for her dysautonomia triggered by the vaccination. I ordered
    serological testing for autoimmune and non-autoimmune causes for her POTS…” First Schofield Rep. at
    4. Accordingly, I have evaluated whether Petitioner suffered from POTS in conducting my analysis in this
    case.
    27
    Sheldon, et al., 2015 Heart Rhythm Society Expert Consensus Statement on the Diagnosis and
    Treatment of Postural Tachycardia Syndrome, Inappropriate Sinus Tachycardia, and Vasovagal
    Syncope, 12 HEART RHYTHM at 3 (2017) (filed as Ex. 57) (hereinafter “Sheldon”). Sheldon goes
    on to note that “[t]he standing (or orthostatic) heart rate of individuals with POTS is often ≥120
    bpm.” Id.
    1. Tilt Table Testing
    Petitioner visited the Swedish Medical Center for tilt table testing on February 25, 2016.
    Ex. 23 at 18-25. Dr. Schofield contends that Petitioner was “officially diagnosed with POTS in
    February, 2016 by tilt table testing done at Swedish Medical Center in Denver.” First Schofield
    Rep. at 4. However, Petitioner’s treating neurologist, Dr. Moon, noted that Petitioner’s tilt table
    test was “not conclusive”. Ex. 16 at 13. In the assessment portion of the March 15, 2016 record,
    Dr. Moon further noted that “[a]t this point, we don’t have definitive POTS.” Id. Respondent’s
    expert, Dr. Leist, provided an opinion consistent with that of Dr. Moon stating that “[t]he records
    do … not support a diagnosis of postural orthostatic tachycardia syndrome.” First Leist Rep. at 14.
    The results of Petitioner’s tilt table test are documented in the following chart:
    Ex. 23 at 20. Dr. Leist noted that the first three entries were taken when Petitioner was laying
    down, sitting up, and standing, and that these entries took place prior to the start of the test. See
    First Leist Rep. at 13; Second Leist Rep. at 3. This interpretation is supported by the above chart
    which indicates “pre tilt table” when describing the entries at 1300 and 1305. Ex. 23 at 20.
    According to Dr. Leist, the actual tilt table test was conducted between 1335 and 1415.
    Second Leist Rep. at 3. Once the test began at 1335, Petitioner’s heart rate was recorded at 102
    bpm. Ex. 23 at 20. At the conclusion of the test, her heart rate was 111 bpm. Id. This change in
    28
    heart rate does not meet the criterion outlined by Sheldon which requires an increase in heart rate
    of ≥30 beats per minute. Sheldon at 3. I also note that Petitioner’s heart rate never exceeded 120
    bpm, which is inconsistent with a POTS diagnosis; Sheldon noted that “[t]he standing (or
    orthostatic) heart rate of individuals with POTS is often ≥120 bpm.” Id.
    In addition, I note that Petitioner did not experience symptoms during the test, which
    further suggests that she does not have POTS. Dr. Schofield addressed this point in her second
    report. She stated,
    Dr. Leist also makes note that [L.P.] did not have any symptoms during the study.
    That portion of the report is usually done by a technician, many of whom do not
    even ask the patient if they have symptoms. All patients with POTS have numerous
    symptoms all the time and learn to not complain, so unless someone is specifically
    asking the patient if they are having symptoms, patients will almost never report
    them. In my experience, it is common for this to be the case on formal tilt table
    reports.
    Second Schofield Rep. at 2. This point would be more compelling if there were an absence of
    symptom discussion by the technician during the test. The fact that “Ø symptoms” is repeatedly
    annotated in the records indicates that the technician asked whether Petitioner was experiencing
    symptoms and contemporaneously recorded that she was not.
    Dr. Schofield contends that Petitioner’s tilt table test was diagnostic of POTS and that she
    “very clearly … met the formal criteria for POTS.” Second Schofield Rep. at 2. She stated, “A tilt
    table test demonstrated a rise in heart rate from 68 to the 100’s without a drop in her blood pressure
    consistent with postural tachycardia syndrome.” First Schofield Rep. at 5. Dr. Schofield combined
    the results from the pretest and the test to arrive at this conclusion. Although no literature was filed
    which directly addresses the point as to whether these initial readings should be considered in
    assessing the test results, several points indicate that they should not. First, the fact that the readings
    are classified as “pre tilt table” suggests that they are not to be used as part of the formal test.
    Second, Petitioner’s treating neurologist, Dr. Moon, noted that “We did see that her heart rate did
    fluctuate significantly prior to the tilt table.” Ex. 16 at 13. This statement also supports the
    distinction between the pre-test numbers and the rest of the testing. Finally, a second neurologist,
    Dr. Leist, has opined that the testing did not begin until 1335. Second Leist Rep. at 3. Ultimately,
    I credit the opinions of the two board certified neurologists over that of Dr. Schofield. In so doing,
    I find that Petitioner’s tilt table test was not diagnostic of POTS.
    2. Other Factors
    Dr. Leist opined that other evidence in Petitioner’s medical records also suggests that she
    does not have POTS. Dr. Leist pointed out that Petitioner wore an event recorder between
    November 6 and November 20, 2015. During this time, Petitioner’s average heart rate was 63 bpm
    29
    and she was in sinus bradycardia10 of less than 60 bpm for 24% of the time. Second Leist Rep. at
    4. In addition, Petitioner’s heart rate was greater than 100 bpm during only 2% of this time period.
    Id. Dr. Leist opined that these factors indicate that Petitioner does not have POTS.11 Id. Dr. Leist
    further remarked about this time period as follows: “[L.P.] marked a total of 9 events when she
    felt symptoms between November 6 and November 12, 2015, 4 of these occurred before 6 am, and
    it could be argued that they occurred while she was in bed. She marked no events between
    November 13 and November 20.” Id.
    In addition to the November 6 through November 20 time period, Dr. Leist noted that
    “[c]ardiac monitor data obtained between about 39 and 59 days after [L.P.] had received influenza
    vaccine on September 25, 2015 are not supportive of a diagnosis of Postural Tachycardia
    Syndrome. The data do however support that [L.P.] has spontaneous, unprovoked fluctuations of
    the heart rate and that she is at times bradycardic.” Second Leist Rep. at 4.
    The tilt table test as well as the other evidence from Petitioner’s medical records
    demonstrates that she does not meet the diagnostic criteria for POTS.
    3. Treating Physicians
    Petitioner visited Dr. Yeash (her PCP) on March 18, 2016 for dizziness, vertigo, poor
    concentration, tachycardia when standing up, extreme fatigue, and weakness. Ex. 18 at 5.
    Petitioner requested paperwork for short term disability. Id. In the HPI, Dr. Yeash’s notes indicate
    that her neurologist had diagnosed her with dysautonomia and POTS. Id. In fact, during
    Petitioner’s March 15, 2016 follow-up appointment with Dr Moon, he noted that “At this point we
    do not have definitive POTS.” Ex. 16 at 13.
    At each subsequent visit from March 18, 2016 through May 31, 2018, Dr. Yeash assessed
    Petitioner with POTS. See Ex. 18 at 1, 5; Ex. 54 at 14, 23. These assessments were based on
    inaccurate information; specifically, that Dr. Moon had assessed Petitioner with POTS. As such, I
    do not find it to be persuasive evidence that POTS is Petitioner’s correct diagnosis.
    None of Petitioner’s other treating physicians (other than Dr. Schofield) diagnosed
    Petitioner with POTS or linked Petitioner’s condition to her flu vaccine. Accordingly, based on
    the results of the tilt table test, the other factors described above, and the opinion of Petitioner’s
    treating neurologist as well as the opinion of Dr. Leist, I conclude that there is not preponderant
    evidence that Petitioner suffers from POTS.
    C. There is not Preponderant Evidence that Petitioner Suffers from APS
    10
    Bradycardia is a slowness of the heartbeat, as evidenced by slowing of the pulse rate to less than 60.
    Dorland's, https://www.dorlandsonline.com/dorland/definition?id=6816&searchterm=bradycardia (last
    visited April 9, 2021).
    11
    In Balasco v. Sec’y of Health & Hum. Servs., 
    2020 WL 1240917
    , the special master noted that some of
    the medical literature filed in that case indicates that extended Holter monitors are not useful in detecting
    POTS. See Balasco, n32. The literature referenced in that decision was not filed in the present case.
    30
    Dr. Schofield repeatedly discussed APS in her expert reports. Although she did not
    definitively state that Petitioner had APS, she discussed the condition enough that it is appropriate
    to provide some background. I note that it is unclear whether Dr. Schofield is contending that
    Petitioner developed APS as a result of her flu vaccine. Certainly, Dr. Leist believed that to be her
    contention. (“Dr. Schofield’s theory appears to be that influenza vaccine induced antiphospholipid
    syndrome which in turn induced an inner ear condition [L.P.’s] case.”) Second Leist Rep. at 1.
    Based on this ambiguity, I have included a brief analysis concerning whether there is preponderant
    evidence that Petitioner suffers from APS and whether the flu vaccine can cause APS.
    Cruz-Tapias described APS as
    an autoimmune multisystemic disease associated with recurrent fetal loss,
    thromboembolic phenomena, thrombocytopenia as well as neurological, cardiac
    and dermatological involvement. APS is characterized by the presence of
    antiphospholipid antibodies which bind negatively charged phospholipids, mainly
    through b2-glycoprotein I (b2-GPI). The factors causing production of anti-b2-GPI
    antibodies remain undefined, but there is evidence that molecular mimicry is one
    of the mechanisms by which experimental APS can occur in association with
    pathogens.
    Cruz-Tapias at 390.
    Throughout her two reports, Dr. Schofield noted that a number of Petitioner’s clinical signs
    and symptoms were consistent with APS. She described these consistencies without ever giving
    Petitioner an APS diagnosis. See e.g., First Schofield Rep. at 4 (“Autonomic dysfunction, migraine
    headaches, cognitive issues, sensorineural hearing loss and Meniere’s like syndrome may all
    [occur] in association with APS”); First Schofield Rep. at 8 (“In addition, all the clinical
    manifestations she experienced have been well described in association with the antiphospholipid
    syndrome, including migraines and cognitive dysfunction, hearing and vestibular issues and
    autonomic nervous system dysfunction.”); Second Schofield Rep. at 4. (“Anticardiolipin
    antibodies are often present in individuals with the antiphospholipid antibody syndrome”).
    As discussed later in this Decision, Petitioner had three tests for antiphospholipid
    antibodies, none of which were positive. Dr. Leist opined that “…low levels of antiphospholipid
    IgM antibodies are not diagnostic antiphospholipid syndrome. Negative antiphospholipid IgM,
    IgG, and IgA antibody tests are not consistent with the diagnosis of antiphospholipid syndrome…”
    First Leist Rep. at 14. In Schofield-1, Dr. Schofield stated:
    The diagnosis of APS was determined by the presence of at least one
    antiphospholipid antibody (lupus anticoagulant, anticardiolipin immunoglobulin
    IgG or IgM, or beta 2 microglobulin I IgG or IgM) on more than one occasion at
    least 12 weeks apart as well as one or more clinical manifestations of the syndrome.
    Not all patients met the revised Sapporo classification criteria for definite APS,
    which requires thrombosis or specific pregnancy morbidity and medium to high
    titer antibody levels. The classification criteria were designed for rigorous clinical
    research studies not for diagnosis, and patients with low titer antibody positivity
    31
    were included as were patients without a history of thrombosis who had well-
    described nonthrombotic manifestations of the syndrome.
    Schofield-1 at 698. Additionally, in Schofield-2, Dr. Schofield noted, “The diagnosis of APS was
    determined by the presence of one or more antiphospholipid antibodies on more than one occasion
    at least 12 weeks apart as well as one or more clinical manifestations of the syndrome.” Schofield-
    2 at 3. Although Petitioner did not file the diagnostic criteria for APS, I note that she did not test
    positive for antiphospholipid antibodies on more than one occasion at least 12 weeks apart. Based
    on Dr. Leist’s opinion, and Dr. Schofield’s lack of a clear diagnosis, I conclude that Petitioner has
    not presented preponderant evidence that she suffered from APS.
    Based upon the findings that Petitioner has not established through preponderant evidence
    that she suffered from either POTS or APS, Petitioner may not receive compensation. Lombardi
    v. Sec'y of Health & Hum. Servs., 
    656 F.3d 1343
     (Fed. Cir. 2011). However, for the sake of
    completeness, I will review the other elements of her claim.
    D. Petitioner Has Not Carried Her Burden of Proof regarding Causation
    1. Althen Prong 1
    In the context of the Program, “to establish causation, the standard of proof is
    preponderance of evidence, not scientific certainty.” Langland v. Sec’y of Health & Hum. Serv.,
    
    109 Fed. Cl. 421
    , 441 (2013). Petitioner’s burden under Althen’s first prong is to provide a medical
    theory causally connecting the vaccination and the injury. 
    Id.
     This theory must be sound and
    reliable. Boatmon, 941 F.3d at 1359.
    Before discussing Petitioner’s prong one theory in this case, I will briefly address whether
    Petitioner has presented preponderant evidence that the flu vaccine can cause APS.
    a. Antiphospholipid Syndrome
    In her first report, Dr. Schofield opined that “It is well recognized that APS may be
    triggered by vaccination and infection.” First Schofield Rep. at 4. Dr. Schofield cited to Cruz-
    Tapias in support of this proposition. Cruz-Tapias noted that the infections most frequently
    associated with APS include parvovirus B19, cytomegalovirus (CMV), toxoplasma, rubella virus,
    varicella-zoster virus, HIV, streptococcal and staphylococcal infections, gram-negative bacteria
    and Mycoplasma pneumoniae. Cruz-Tapias at 389. With respect to vaccination, Cruz-Tapias
    discussed an association between APS and tetanus toxoid vaccines and noted that individuals
    immunized with tetanus toxoid vaccines developed anti-b2-GPI/antitetanus toxoid cross-reactive
    antibodies via molecular mimicry. Id. at 390. While this article provides some support for a
    connection between APS and tetanus toxoid vaccines, it does not discuss the flu vaccine.
    In Schofield-1, Dr. Schofield noted that “[o]ne patient (#13) developed APS, POTS, and
    NCS two months after human papillomavirus (HPV) vaccination…” Schofield-1 at 698. The
    article did not elaborate on how the HPV vaccine caused APS (or POTS). The article did not
    discuss the flu vaccine.
    32
    Dr. Leist opined that “Dr. Schofield’s claim that influenza vaccine caused antiphospholipid
    syndrome as root cause for a host of symptoms in L.P.’s case is not supported by the records.”
    First Leist Rep. at 12.
    Two articles which discuss APS following different vaccines (not the vaccine at issue in
    this case) along with Dr. Schofield’s opinion that “It is well recognized that APS may be triggered
    by vaccination...” is not sufficient for Petitioner to preponderantly establish that the flu vaccine
    can cause APS.
    b. POTS
    Petitioner’s prong one theory is that the influenza vaccination caused Petitioner to develop
    a transient upregulation of antiphospholipid antibodies which in turn caused damage to Petitioner’s
    inner ear and vestibular system and resulted in Petitioner developing POTS. This theory can be
    broken down into two discrete questions: 1) Can the influenza vaccine cause the development of
    transient antiphospholipid antibodies; and 2) can a transient upregulation in antiphospholipid
    antibodies cause POTS.
    i. Can the Influenza Vaccine Induce Transient Upregulation in
    Antiphospholipid Antibodies?
    Dr. Schofield stated that “Transient production of anticardiolipin antibodies and clinical
    manifestations of APS (including stroke) as occurred in [L.P.’s] case has been reported in more
    than one publication … in association with the influenza vaccine.” First Schofield Rep. at 8. As
    support for this proposition, Dr. Schofield cited to several articles. See Perdan-Pirkmajer, et al.,
    Autoimmune response following influenza vaccination in patients with autoimmune inflammatory
    rheumatic disease, 21 LUPUS 175-83 (2012) (filed as Ex. 34) (hereinafter “Perdan-Pirkmajer”);
    Agmon-Levin; and Toplak.
    Perdan-Pirkmajer studied 218 patients with autoimmune inflammatory rheumatic disease
    (AIRD). In this study, 50 patients were vaccinated against seasonal influenza, six against H1N1,
    104 against both, and there were 58 non-vaccinated controls. Perdan-Pirkmajer at 175. Blood
    samples were taken and screened for autoantibodies before vaccination, one month after
    vaccination, and six months after vaccination. Id. The study concluded that “Although no
    convincing differences between the seasonal and H1N1 vaccines were observed, our results imply
    that there might be a slight tendency of the H1N1 vaccine towards aCL [anticardiolipin antibodies]
    induction.” Id. The authors noted “the potential of both vaccines to induce de novo aCL IgG/IgM
    in susceptible subjects. Nevertheless, although a transient increase in aCL IgG after either
    vaccination was often observed, the long-term effect of vaccination resulted in lower aCL IgG in
    most patients.” Id. at 181. This study seems to tell us that patients with AIRD may experience a
    transient increase in anticardiolipin antibodies after vaccination with seasonal influenza/H1N1.
    Because Petitioner does not have AIRD, it is unclear how this study is relevant to her case.
    Dr. Schofield cited to the Toplak paper as support for her theory that flu vaccination can
    cause an increase in anticardiolipin antibodies and/or APS. Toplak evaluated the possibility of
    33
    autoimmune responses following flu vaccination by measuring specific autoantibodies in 92
    healthy adults before vaccination, one month after vaccination, and six months after vaccination.
    Toplak at 134. Toplak found that “There were no statistically significant differences in the
    percentage of positive ANA, aCL, anti-β2-GPI, LA and anti-ENA before,1 month and 6 months
    after the vaccination.” Id. However, while the study found that influenza vaccination did not alter
    the percentage of healthy adults with positive autoantibodies, an “[i]ncreased level of
    autoantibodies or appearance of new autoantibodies was observed 1 month after the vaccination
    in 15% and 6 months after the vaccination in 13% of participants, suggesting de novo induction of
    autoantibodies after the influenza vaccination in selected individuals.” Id. at 137. Toplak did note
    changes in anticardiolipin antibodies in some study participants. Topak at 138. Ultimately, Topak
    provides some support for the proposition that flu vaccine can result in an increase in
    anticardiolipin antibodies.12 Of note, the Topak paper specifically found that no participant
    developed clinical signs of autoimmune disease within six months of vaccination. Id. at 136.
    The Agmon-Levin article is an opinion piece that presents a broad discussion of vaccines
    and autoimmunity. The authors note that “the latency period between vaccination and
    autoimmunity ranges from days to years.” Agmon-Levin at 648. They cite to Toplak as one study
    that supports this proposition (noting that “Toplak et al. reported the production of autoantibodies
    (such as antinuclear and antiphospholipid antibodies) in 92 healthy medical workers up to 6
    months after influenza vaccination.”). This article provides no further discussion of anticardiolipin
    antibodies or APS.
    In summary, the above-mentioned literature, specifically the Toplak article does provide
    some evidence that the flu vaccine can result in the transient upregulation of anticardiolipin
    antibodies.
    ii.     Can the Transient Upregulation of Antiphospholipid Antibodies
    Cause POTS?
    Petitioner filed a one-page abstract which described patients with hearing loss. See
    Mouadeb & Ruckstein. The abstract described a study cohort which included 168 patients referred
    for diagnosis and treatment of progressive hearing loss. Mouadeb & Ruckstein at 879. All patients
    had blood tests for autoimmune and infectious diseases, including testing for anticardiolipin
    antibodies, anti-B2 glycoprotein, and lupus anticoagulant. Id. The results of the study indicated
    that 42 patients (25%) had at least one elevated antiphospholipid antibody marker. Id. The study
    concluded that “These data support the hypothesis that antiphospholipid antibodies are involved
    in the pathogenesis of some forms of inner ear dysfunction, presumably by causing microthrombus
    formation in the labyrinthine vasculature.” Id. The abstract went on to note that “Basic science
    studies are required to better understand the mechanisms by which antiphospholipid antibodies
    mediate inner ear dysfunction. Clinical studies to evaluate the efficacy of anticoagulation in this
    group of patients are also required.” Id.
    12
    This point does not necessarily support the proposition that flu vaccine can cause APS. The fact that
    anticardiolipin antibodies are often present in individuals with APS does not mean that an increase in
    anticardiolipin antibodies leads to APS.
    34
    Dr. Leist did not find the one page abstract persuasive and remarked that the Mouadeb &
    Ruckstein article “does not go beyond the description that 42 of a series of 168 patients with
    sensorineural hearing [loss] had a least one antiphospholipid marker.” Second Leist Rep. at 5. He
    further stated that “the authors speculate how anticardiolipin antibodies could potentially cause
    hearing issues.” Id.
    This one-page abstract provides some minimal evidence that hearing loss can be associated
    with antiphospholipid antibodies. However, it does not provide any connection to POTS. Dr.
    Schofield stated that “Autonomic dysfunction, migraine headaches, cognitive issues, sensorineural
    hearing loss and Meniere’s like syndrome may all occur in association with APS.” First Schofield
    Rep. at 4. Similar to the one page abstract, this statement does not include any analysis of whether
    or how a “Ménière’s like syndrome” can lead to POTS.
    Further, in Schofield-1, the authors wrote: “we do not know what the frequency of
    autonomic dysfunction may be in the overall APS patient population, nor how often
    antiphospholipid antibodies may be present in patients with various autonomic disorders.”
    Schofield-1 at 700-01. The fact that it is unclear to Dr. Schofield whether antiphospholipid
    antibodies are even present in patients with autonomic disorders suggests that there is not
    preponderant evidence that the upregulation of antiphospholipid antibodies can cause POTS.
    Ultimately, for the reasons discussed above, I find that Petitioner has not presented
    preponderant evidence in the form of a reputable medical theory which demonstrates that the flu
    vaccine can cause either APS or POTS.
    2. Althen Prong 2
    Under Althen’s second prong, a petitioner must “prove a logical sequence of cause and
    effect showing that the vaccination was the reason for the injury.” Althen, 
    418 F.3d at 1278
    . The
    sequence of cause and effect must be “'logical' and legally probable, not medically or scientifically
    certain.” 
    Id.
     A petitioner is not required to show “epidemiologic studies, rechallenge, the presence
    of pathological markers or genetic disposition, or general acceptance in the scientific or medical
    communities to establish a logical sequence of cause and effect.” 
    Id.
     (omitting internal citations).
    Capizzano v. Sec'y of Health & Hum. Servs., 
    440 F.3d 1317
    , 1325 (Fed. Cir. 2006). Instead,
    circumstantial evidence and reliable medical opinions may be sufficient to satisfy the second
    Althen prong. Isaac v. Sec’y of Health & Hum. Servs., No. 08-601V, 
    2012 U.S. Claims LEXIS 1023
     at *75 (Fed. Cl. Spec. Mstr. July 30, 2012), aff’d 
    108 Fed. Cl. 743
     (Fed. Cl. 2013).
    a. Petitioner’s Pre-Existing Symptoms
    A petitioner cannot succeed on a claim of causation-in-fact where the alleged condition
    preexisted the vaccination. See W.C. v. Sec'y of Health & Hum. Servs., 
    704 F.3d 1352
    , 1354–55
    (Fed. Cir. 2013) (affirming the special master’s denial of compensation on claim of causation-in-
    fact because “[i]f a petitioner has a disorder before being vaccinated, the vaccine logically cannot
    have caused the disorder”). In this case, the medical records demonstrate that Petitioner was
    suffering from a host of symptoms prior to her flu vaccination that were similar to her symptoms
    post vaccination. For at least two years prior to September 25, 2015, Petitioner frequently
    35
    Polymorphous Light Eruption/   10-15-14: ENT history of pruritic erythema, possible photosensitivity   Ex. 10 at 24
    Rash due to Sun Exposure       06-10-15: possible polymorphous light eruption                          Ex. 10 at 27
    Hypermobility                  04-14-14: Petitioner reported feeling “hypermobile at times”            Ex. 13 at 1
    Petitioner’s medical records demonstrate that she had a number of medical concerns prior
    to September 25, 2015 that were similar in nature to her symptoms after vaccination. Petitioner
    contends that her symptoms after vaccination were different in both their nature and severity.
    Although Petitioner states that “there is not a single pre-vaccination record of
    dysautonomia or POTS” (Pet’r’s Reply at 3), this contention is not supported by the medical
    records cited above, which demonstrate that Petitioner repeatedly complained of heart palpitations
    in the years before she received her flu vaccination.
    Petitioner additionally differentiated between a low frequency “thumping” sound that she
    experienced after vaccination (Ex. 3 at 1) and her tinnitus documented pre-vaccination. In her
    affidavit, Petitioner stated that “[a]lthough I had experienced a high-pitched tinnitus in both ears
    before, this sensation was different, as I began to experience a low hum, vibrating noise in my left
    ear that would not go away.” Ex. 1, ¶ 3. Dr. Leist opined that that Petitioner had a history of
    Eustachian tube dysfunction and tinnitus. He remarked in his report “Dr. Kreutzer recorded an at
    least 10-year history of tinnitus, intermittent ear pressure, and fullness of the left ear (Exhibit 4 at
    1; Exhibit 13 at 2).” First Leist Rep. at 14. He further opined that “[L.P.] had tinnitus and pressure
    and fullness before and after administration of influenza vaccine on September 25, 2015.” 
    Id.
    While the specific symptoms that Petitioner experienced after vaccination are somewhat different
    than her pre-vaccination complaints, they appear to be substantially similar. Ultimately, the
    medical records establish that Petitioner experienced symptoms of dysautonomia and tinnitus prior
    to her September 25, 2015 vaccination.
    In her second expert report, Dr. Schofield stated, “many patients who develop severe
    autoimmune dysautonomia have much milder underlying symptoms suggesting mild orthostatic
    intolerance and/or immune dysregulation just as [L.P.’s] history suggests.” Second Schofield Rep.
    at 3. Dr. Schofield did not provide any further discussion concerning this point. She did not
    elaborate as to how Petitioner’s pre-existing symptoms supported her theory that the flu vaccine
    did cause Petitioner’s condition.
    b. Anticardiolipin Antibodies
    Aside from a temporal correlation between Petitioner’s symptoms and her vaccination, Dr.
    Schofield points to two main tests in support of her position that the flu vaccine did cause
    Petitioner’s illness: Petitioner’s aCL IgM and her low C4 level. I will address each of these in turn.
    Dr. Schofield ordered tests for anticardiolipin antibodies on June 8, 2016. These results are
    depicted below:
    37
    Ex. 24 at 66-67. The lab assessed both tests as negative. In her first expert report, Dr. Schofield
    described the test results as follows: “I ordered serological testing for autoimmune and non-
    autoimmune causes for her POTS which was notable for a positive anticardiolipin IgM antibody-
    -one of the antibodies associated with the autoimmune clotting disorder antiphospholipid
    syndrome (APS).” First Schofield Rep. at 4. In her second report, Dr. Schofield clarified this point
    and noted that Petitioner’s anticardiolipin antibody test came back as “indeterminate” or “low
    positive.”
    Her anticardiolipin IgM level during my initial evaluation (one full year after the
    vaccination) was actually indeterminate or low positive at 18 MPL (indeterminate
    or low positive is 12.5 to 20 MPL), not negative. The University of Colorado
    Rheumatology laboratory has elected not to report the low positive/indeterminate
    anticardiolipin antibody results based on the formal 2006 revised Sapporo Criteria
    for a diagnosis of antiphospholipid syndrome (APS). … The University of
    Colorado laboratory is the only laboratory I know of that does this and when I was
    practicing there, I met with the head of the Rheumatology laboratory requesting
    they report the low/indeterminate positive results as they were clearly clinically
    important in some of my patients. They preferred to report the low/indeterminate
    titer results to me directly rather than reporting them in the chart.
    Second Schofield Rep. at 3. Dr. Schofield pasted an example of the way other laboratories report
    anticardiolipin antibodies into her report.
    38
    Ex. 28 at 8. It is not clear why Dr. Schofield sent these results to a different lab. With respect to
    this testing, she stated, “Repeat testing for antiphospholipid antibodies … many months later
    showed this testing had normalized, suggesting the autoimmunity was transient…” First Schofield
    Rep. at 7.
    Dr. Leist opined as follows: “Absence of anticardiolipin antibodies renders anticardiolipin
    syndrome or for that matter an anticardiolipin antibody related condition unlikely.” Second Leist
    Rep. at 1. He further stated that “Laboratory tests in [L.P.] do not fulfill laboratory criteria of the
    “The International consensus statement on an update of the classification criteria for definite
    antiphospholipid syndrome (APS)” [antiphospholipid antibodies include anticardiolipin, beta-2
    glycoprotein I, and lupus anticoagulant antibodies].” 
    Id. at 2
    .
    It is unclear how an indeterminate level aCL taken more than eight months after
    vaccination demonstrates that Petitioner’s flu vaccination did cause her condition. Although Dr.
    Schofield stated, “I suspect it would have been higher if it were tested closer to the time of the
    illness onset” (Second Schofield Rep. at 7), this statement is entirely speculative. Further, it is also
    unclear how Petitioner’s negative test from June 2016 compares with her negative test from the
    same lab in September 2016, as Dr. Schofield included the indeterminate test value of 18 in her
    report, but did not indicate what the value was for the September test. In short, I do not find Dr.
    Schofield’s opinion concerning this matter to be persuasive.
    c. Complement Component 4 (C4)
    Dr. Schofield also opined that Petitioner’s low C4 is indicative of autoimmunity and thus
    supports her position that the flu vaccine did cause Petitioner’s condition. Dr. Schofield stated:
    “There was also a persistently low C4 level on three serial occasions (the first being done Sept
    2016) suggestive of either active autoimmunity or a genetic predisposition to autoimmunity.
    Repeat testing in January 2018 showed this level had normalized consistent with active
    autoimmunity rather than a genetically low level.” Second Schofield Rep. at 7.
    Petitioner’s testing does indicate that her C4 level was low on three occasions. On June 8,
    2016, Petitioner’s C4 level was 13.7 (reference range 19.0-52.0 mg/dL). Ex. 24 at 56. On
    September 28, 2016, Petitioner’s C4 was 13.3 (reference range 19.0-52.0 mg/dL). Ex. 29 at 16.
    On October 14, 2016, Petitioner’s C4 was 12 (reference range 14-44). Ex. 28 at 6. Dr. Schofield
    did not spend time in her reports discussing the meaning of C4 levels. Other than to state that these
    40
    levels are indicative of persistent autoimmunity, Dr. Schofield did not explain or describe how a
    low C4 level eight plus months after vaccination is significant to this case. Further, it is unclear
    why Petitioner’s aCL level normalized and her C4 did not and how this supports Petitioner’s theory
    that her flu vaccine did cause her condition. Dr. Leist did not discuss Petitioner’s C4 levels in his
    report. Ultimately, while Petitioner’s C4 level was low on three occasions, the significance of these
    levels has not been explained in any meaningful way that connects these results to vaccination,
    which occurred between eight and twelve plus months prior.
    d. Petitioner’s Treating Physicians
    In weighing evidence, special masters are expected to consider the views of treating
    doctors. Cappizano v. Sec’y of Health & Human Servs., 
    440 F.3d 1317
    , 1326 (Fed. Cir. 2006).
    The views of treating doctors about the appropriate diagnosis are often persuasive because the
    doctors have direct experience with the patient whom they are diagnosing. See McCulloch v. Sec’y
    of Health & Human Servs., No. 09-293V, 
    2015 WL 3640610
    , at *20 (Fed. Cl. Spec. Mstr. May
    22, 2015).
    I have considered the fact that Dr. Schofield was one of Petitioner’s treating physicians in
    arriving at my determination in this case. I also note that none of Petitioner’s other treating doctors
    connected any of her symptoms with her flu vaccination.
    For the reasons articulated above, I find that Petitioner has failed to preponderantly
    demonstrate that her flu vaccination “did cause” any of her medical problems and has thus not
    established the second prong of Althen.
    3. Althen Prong 3
    The timing prong contains two parts. First, a petitioner must establish the “timeframe for
    which it is medically acceptable to infer causation” and second, she must demonstrate that the
    onset of the disease occurred in this period. Shapiro v. Secʼy of Health & Hum. Servs., 
    101 Fed. Cl. 532
    , 542-43 (2011), recons. denied after remand on other grounds, 
    105 Fed. Cl. 353
     (2012),
    aff’d without op., 503 F. App’x 952 (Fed. Cir. 2013).
    Petitioner failed to establish a timeframe for which it is medically acceptable to infer
    causation. In Dr. Schofield’s first report, she stated that “The mean time to post-vaccination
    symptom onset is two weeks, but it may range from a few days to a few months.” In her second
    report, Dr. Schofield claimed that “it is generally accepted by most experts in the field of
    autoimmune disease that vaccinations are one of the environmental triggers of autoimmune disease
    and a period of 30 days has been usually used to define temporal association.” Second Schofield
    Rep. at 6. Dr. Schofield did not provide a specific opinion on the appropriate window between flu
    vaccine and onset of POTS or APS. Further, she did not cite to any medical literature specifically
    establishing a temporal association between the flu vaccine and POTS or APS. Painting with such
    a broad brush in discussing the appropriate onset interval between vaccinations generally and
    autoimmune diseases generally is not persuasive.
    41
    Additionally, even assuming 30 days is an acceptable timeframe to infer causation,
    Petitioner failed to establish that the onset of her alleged injury occurred during this window. Dr.
    Schofield reported that there was “a clear temporal relationship to the onset of [Petitioner’s]
    symptoms and the influenza vaccine she received and [Dr. Schofield] was suspicious of an
    immune-mediated mechanism for her dysautonomia triggered by the vaccination.” First Schofield
    Rep. at 4. However, in drafting her first report, Dr. Schofield failed to review Petitioner’s prior
    medical history and instead chose to rely on Petitioner’s statement that she “was completely
    healthy” prior to her vaccination. Second Schofield Rep. at 2. Dr. Schofield failed to distinguish
    Petitioner’s pre-vaccination symptoms from her post-vaccination symptoms, and thus failed
    establish the onset of Petitioner’s alleged injury.13 Petitioner has not presented preponderant proof
    with respect to the third Althen prong.
    VII.   Conclusion
    Upon careful evaluation of all the evidence submitted in this matter, including the medical
    records, the affidavit, as well as the experts’ opinions and medical literature, I conclude that
    Petitioner has not shown by preponderant evidence that she is entitled to compensation under the
    Vaccine Act. Her petition is therefore DISMISSED. The clerk shall enter judgment
    accordingly.14
    IT IS SO ORDERED.
    s/ Katherine E. Oler
    Katherine E. Oler
    Special Master
    13
    In her second report, Dr. Schofield pivoted from her position that Petitioner was completely healthy
    before vaccination and opined that “many patients who develop severe autoimmune dysautonomia have
    much milder underlying symptoms suggesting mild orthostatic intolerance and/or immune dysregulation
    just as [L.P.’s] history suggests.” Second Schofield Rep. at 3. Dr. Schofield did not elucidate how
    vaccination as a trigger for Petitioner’s underlying symptoms fits into the 30-day temporal window
    discussed above.
    14
    Pursuant to Vaccine Rule 11(a), the parties may expedite entry of judgment by each filing (either jointly
    or separately) a notice renouncing their right to seek review.
    42