Heddens v. Secretary of Health and Human Services ( 2019 )


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  •           In the United States Court of Federal Claims
    No. 15-734V
    (E-Filed: April 30, 2019) 1
    ____________________________________
    )
    AMY N. HEDDENS,                     )                Vaccine (human papillomavirus);
    )                National Childhood Vaccine
    Petitioner,                   )                Injury Act of 1986, 42 U.S.C. §§
    )                300aa-1 to -34 (2012); Deferential
    v.                                  )                Review of the Special Master’s
    )                Fact Finding and Weighing of the
    SECRETARY OF HEALTH AND             )                Evidence.
    HUMAN SERVICES,                     )
    )
    Respondent.                   )
    ____________________________________)
    Ronald C. Homer, Boston, MA, for petitioner.
    Christine M. Becer, Trial Attorney, with whom were Joseph H. Hunt, Assistant Attorney
    General, C. Salvatore D’Alessio, Acting Director, Catharine E. Reeves, Deputy Director,
    Gabrielle M. Fielding, Assistant Director, Torts Branch, Civil Division, United States
    Department of Justice, Washington, DC, for respondent.
    OPINION AND ORDER
    CAMPBELL-SMITH, Judge.
    On October 5, 2018, the special master issued his decision denying compensation
    in this vaccine case. See ECF No. 94. On October 31, 2018, petitioner filed: (1) a
    motion for review of the special master’s decision, ECF No. 97; and (2) the memorandum
    in support of the motion for review, ECF No. 99. Respondent filed its response brief on
    1
    Pursuant to Rule 18(b) of the Vaccine Rules of the United States Court of Federal
    Claims (Appendix B to the Rules of the United States Court of Federal Claims), this
    opinion was initially filed under seal on March 12, 2019. Pursuant to ¶ 4 of the ordering
    language, the parties were to propose redactions of the information contained therein on
    or before March 26, 2019. No proposed redactions were submitted to the court.
    November 30, 2018. See ECF No. 102. Petitioner’s motion is fully briefed and ripe for
    decision.
    The special master denied petitioner compensation under the National Childhood
    Vaccine Injury Act of 1986, 42 U.S.C. §§ 300aa-1 to -34 (2012) (the Vaccine Act). As
    explained below, the special master’s entitlement decision survives this court’s review.
    Accordingly, the court must DENY petitioner’s motion for review.
    I.     Background
    On June 30, 2010, petitioner visited a clinic for a “well woman exam.” There, she
    reported “frequent urination, loss of balance, and blurry vision when she moved her
    head,” as well as diarrhea, a late period, and nausea. ECF No. 94 at 2; see also ECF No.
    96 at 19-21 (transcript of the evidentiary hearing held on October 1, 2018).
    On December 3, 2012, petitioner received her third dose of the human
    papillomavirus (HPV) vaccine. ECF No. 94 at 2. On January 18, 2013, petitioner
    experienced “double vision and dizziness.” 
    Id. She went
    to an urgent care facility for
    evaluation. 
    Id. The urgent
    care doctor referred petitioner to an emergency room, from
    which she was referred to an ophthalmologist. 
    Id. On January
    29, 2013, petitioner
    received a magnetic resonance imaging scan (MRI) that showed “multiple enhancing
    lesions” throughout her brain. 
    Id. Thereafter, a
    neurologist diagnosed petitioner with
    multiple sclerosis (MS). 
    Id. On July
    16, 2015, petitioner requested Vaccine Act
    compensation on the theory that her MS “was caused-in-fact” by the HPV vaccine. ECF
    No. 1 (petition). In her memorandum in support of her motion for review, petitioner
    characterizes her claim as alleging “that her HPV vaccination caused a significant
    aggravation of an underlying, subclinical MS.” ECF No. 99 at 6.
    On October 1, 2018, the special master held an evidentiary hearing. See ECF No.
    96. During the hearing, the special master heard testimony from both petitioner’s expert,
    Dr. Salvatore Napoli, and respondent’s expert, Dr. Subramaniam Sriram. See 
    id. At the
    close of the hearing, the special master issued a ruling from the bench and denied
    petitioner’s request for compensation. See 
    id. at 229-53.
    In issuing his ruling, the special
    master explained: “[W]hat I look at first is the epidemiology, and that does not seem to
    support the theory that HPV vaccine causes or affects multiple sclerosis. I realize that
    [Althen v. Sec’y of Health & Human Servs., 
    418 F.3d 1274
    (Fed. Cir. 2005),] says that
    epidemiology is not required, but epidemiology remains a relevant factor.” 
    Id. at 239.
    He also stated:
    I tend to give the epidemiology great weight. That’s how I tend to view the
    evidence. I think [Whitecotton v. Sec’y of Health & Human Servs., 
    81 F.3d 1099
    (Fed. Cir. 1996),] says that how much weight Special Masters give to
    evidence is a discretionary function of a Special Master. So I think some
    2
    Special Masters may weigh epidemiology different[ly] than I do, but I tend
    to give it more weight.
    
    Id. at 242.
    The bench ruling was later memorialized in a written decision issued four days
    later, on October 5, 2018. See ECF No. 94. As an initial matter, the special master
    explained that: “the undersigned considered all the evidence, including the medical
    records, expert reports, medical articles, and oral testimony.” 
    Id. at 1-2.
    The special
    master reiterated his conclusion that petitioner had failed to carry her burden of
    demonstrating that “the HPV vaccine can worsen (or cause) MS,” and concluded that
    “regardless of whether her claim is one for significant aggravation . . . or whether her
    claim is a new onset claim, she is not entitled to compensation.” 
    Id. at 6.
    The special master’s decision noted that the “undisputed testimony from the
    experts indicate[s] the [petitioner], most likely, had lesions in her brain before the HPV
    vaccination on December 3, 2012.” 
    Id. at 2-3.
    For this reason, the special master
    analyzed petitioner’s case “as a claim for significant aggravation,” and applied the factors
    set forth in this court’s opinion in Loving v. Sec’y of Health & Human Servs., 
    86 Fed. Cl. 135
    , 144 (2009). The special master noted that “[t]his decision turns on the outcome of
    the fourth Loving factor . . . whether the HPV vaccination can cause an exacerbation of
    MS.” 
    Id. From there,
    the special master proceeded to evaluate expert testimony, along with
    epidemiological and experimental evidence. The epidemiological evidence included a
    variety of studies that had been submitted by respondent in an effort to undermine
    petitioner’s claim—some, but not all of which, addressed the connection between the
    HPV vaccine and MS. See id.; see also 
    id. at 3-4
    (describing and citing to the studies
    presented by respondent). The special master assigned “less evidentiary value” to the
    studies that did not specifically involve the HPV vaccine. 
    Id. at 4.
    He concluded that the
    studies did not tend to support petitioner’s case but also observed that “epidemiology
    does not conclusively establish that the HPV vaccine cannot cause MS.” 
    Id. As such,
    the
    conclusion that petitioner failed to carry her burden under the fourth Loving factor “does
    not rest exclusively on the epidemiology.” 
    Id. Petitioner’s expert
    posited a theory that molecular mimicry explains the
    connection between the HPV vaccine and MS, and offered two articles as support. 
    Id. at 4-5.
    The first article, by Kai W. Wucherpfennig and Jack L. Strominger, 2 “explored
    2
    Kai W. Wucherpfennig & Jack L. Strominger, Molecular mimicry in T cell-
    mediated autoimmunity: viral peptides activate human T cell clones specific for myelin
    basic protein, 80(5) Cell 695 (1995). See ECF No. 94 at 4 n.11.
    3
    whether various foreign antigens (viruses and bacteria) could inspire the production of T
    cells that would react with myelin basic protein.” 
    Id. A review
    of relevant data revealed
    that “the human papillomavirus did not generate a strong response” in this context. 
    Id. at 5.
    The second article, by Darja Kanduc, 3 addressed the HPV vaccine, and proposed that
    cross-reactivity with certain proteins could cause complications. See 
    id. “But, none
    of
    those problems resemble the problems that appear in MS.” 
    Id. The special
    master
    acknowledged that these articles presented possible theories, but concluded that they
    were not persuasive enough to carry petitioner’s burden. 
    Id. at 5-6.
    II.    Legal Standards
    This court has jurisdiction to review the decision of a special master in a Vaccine
    Act case. 42 U.S.C. § 300aa-12(e)(2). “Under the Vaccine Act, the Court of Federal
    Claims reviews the decision of the special master to determine if it is ‘arbitrary,
    capricious, an abuse of discretion, or otherwise not in accordance with law[.]’” de Bazan
    v. Sec’y of Health & Human Servs., 
    539 F.3d 1347
    , 1350 (Fed. Cir. 2008) (quoting 42
    U.S.C. § 300aa-12(e)(2)(B) and citing 
    Althen, 418 F.3d at 1277
    ) (alteration in original).
    This court uses three distinct standards of review in Vaccine Act cases, depending
    upon which aspect of a special master’s judgment is under scrutiny.
    These standards vary in application as well as degree of deference. Each
    standard applies to a different aspect of the judgment. Fact findings are
    reviewed . . . under the arbitrary and capricious standard; legal questions
    under the “not in accordance with law” standard; and discretionary rulings
    under the abuse of discretion standard.
    Munn v. Sec’y of Dep’t of Health & Human Servs., 
    970 F.2d 863
    , 870 n.10 (Fed. Cir.
    1992).
    The third standard of review, abuse of discretion, is applicable when the special
    master excludes evidence or otherwise limits the record upon which he or she relies. See
    
    id. at 870.
    As this court has stated, the third standard applies to the special master’s
    evidentiary rulings. Stillwell v. Sec’y of Health & Human Servs., 
    118 Fed. Cl. 47
    , 55
    (2014) (citation omitted), aff’d, 607 F. App’x 997 (Fed. Cir. 2015). Determinations
    subject to review for abuse of discretion must be sustained unless “manifestly erroneous.”
    Piscopo v. Sec’y of Health & Human Servs., 
    66 Fed. Cl. 49
    , 53 (2005) (citations
    omitted); see also Milmark Servs., Inc. v. United States, 
    731 F.2d 855
    , 860 (Fed. Cir.
    1984) (holding that decisions within the trial court’s discretion are to be sustained unless
    “manifestly erroneous”) (citation omitted).
    3
    Darja Kanduc, Quantifying the possible cross-reactivity risk of an HPV16 vaccine,
    8 J. Experimental Therapeutics & Oncology 65 (2009). See ECF No. 94 at 5 n.12.
    4
    A petitioner may obtain compensation if she “sustained, or had significantly
    aggravated, any illness, disability, injury, or condition not set forth in the Vaccine Injury
    Table but which was caused by” certain vaccines, including the HPV vaccine. 42 U.S.C.
    § 300aa-11(c)(1)(C)(ii). A case for significant aggravation of an off-Table claim requires
    proof, by a preponderance of the evidence of:
    (1) the person’s condition prior to administration of the vaccine, (2) the
    person’s current condition (or the condition following the vaccination if that
    is also pertinent), (3) whether the person’s current condition constitutes a
    “significant aggravation” of the person’s condition prior to vaccination, (4)
    a medical theory causally connecting such a significantly worsened condition
    to the vaccination, (5) a logical sequence of cause and effect showing that
    the vaccination was the reason for the significant aggravation, and (6) a
    showing of a proximate temporal relationship between the vaccination and
    the significant aggravation.
    
    Loving, 86 Fed. Cl. at 144
    ; see also W.C. v. Sec’y of Health & Human Servs., 
    704 F.3d 1352
    , 1360 (Fed. Cir. 2013) (referring to the Loving test as “the correct law”).
    III.   Analysis
    In her memorandum in support of her motion for review, petitioner raises four
    objections to the special master’s decision. First, petitioner objects to the special
    master’s reliance on epidemiological studies that do not address the HPV vaccine. See
    ECF No. 99 at 15-16. Second, petitioner objects to the special master’s reliance on an
    article by Nikolai Madrid Scheller. 4 
    Id. at 17-19.
    Third, petitioner objects more
    generally to the special master’s reliance on epidemiology. 
    Id. at 19-25.
    And fourth,
    petitioner objects to the special master’s determination that she failed to meet her burden
    under Loving factor four by presenting a theory of molecular mimicry. 
    Id. at 25-31.
    The
    court will address each argument in turn.
    A.     The Special Master Did Not Abuse His Discretion in Considering Studies
    that Did Not Involve the HPV Vaccine
    Regarding her first objection, petitioner argues that the special master “gave
    substantial weight to epidemiologic studies that did not examine the HPV vaccination and
    MS.” ECF No. 99 at 15. Petitioner asserts that the special master’s “reliance on these
    studies in any capacity is not in accordance with the law.” 
    Id. at 16.
    In particular,
    petitioner argues that such consideration violates the standard observed in Moberly v.
    4
    Nikolai Madrid Scheller et al., Quadrivalent HPV Vaccination and Risk of
    Multiple Sclerosis and Other Demyelinating Diseases of the Central Nervous System,
    313 J. Amer. Med. Ass’n 54 (2015). See ECF No. 94 at 3 n.6.
    5
    Secretary of Health & Human Services, 
    592 F.3d 1315
    (Fed. Cir. 2010), that “[a]s a
    general matter, epidemiological studies are designed to reveal statistical trends only for a
    carefully constructed test group. Such studies provide no evidence pertinent to persons
    not within the parameters of the test group.” 
    Id. (quoting Moberly,
    592 F.3d at 1324).
    Petitioner is correct that some of the studies cited by the special master do not
    involve the HPV vaccine. 5 The special master, however, acknowledged as much, and
    weighted the evidence accordingly. See ECF No. 94 at 4. He stated: “Because these
    studies are not about the HPV vaccine, they carry less evidentiary value than the
    epidemiology directly on point. But, to the extent these additional studies contribute to
    the analysis, they tend to show that vaccinations do not contribute to MS.” 
    Id. In vaccine
    cases, a special master “must consider all relevant and reliable evidence governed by
    principles of fundamental fairness to both parties.” Rule 8(b)(1) of the Vaccine Rules of
    the United States Court of Federal Claims, Appendix B to the Rules of the United States
    Court of Federal Claims. And as the United States Court of Appeals for the Federal
    Circuit has held, “epidemiological studies are probative medical evidence relevant to
    causation.” Grant v. Sec’y of Dep’t of Health & Human Servs., 
    956 F.2d 1144
    , 1149
    (Fed. Cir. 1992). See also Andreu ex rel. Andreu v. Sec’y of Dep’t of Health & Human
    Servs., 
    569 F.3d 1367
    , 1379 (Fed. Cir. 2009) (stating that although a “claimant need not
    produce medical literature of epidemiological evidence to establish causation under the
    Vaccine Act, where such evidence is submitted, the special master can consider it in
    reaching an informed judgment as to whether a particular vaccination likely caused a
    particular injury”).
    Neither party has cited, nor is the court aware of, any precedent requiring a special
    master to wholly reject consideration of epidemiological evidence if such evidence is not
    directly applicable to the facts of the case at bar. See, e.g., D’Tiole v. Sec’y of Health &
    Human Servs., 726 F. App’x 809, 811 (Fed. Cir. 2018) (“Nothing in Althen or
    [Capizzano v. Sec’y of Health & Human Servs., 
    440 F.3d 1317
    (Fed. Cir. 2006)] requires
    the Special Master to ignore probative epidemiological evidence that undermines
    petitioner’s theory.”); 
    Grant, 956 F.2d at 1148-49
    (considering negative epidemiological
    evidence). Moreover, the special master explicitly stated that the “epidemiology does
    not conclusively establish that the HPV vaccine cannot cause MS.” ECF No. 94 at 4.
    For this reason, his conclusion “does not rest exclusively on the epidemiology.” 
    Id. It is
    clear to the court that the special master considered the epidemiological
    evidence presented by respondent, but did not treat that evidence as weighing heavily
    5
    The articles included in this section of the special master’s decision are: Frank
    DeStefano et al., Vaccinations and Risk of Central Nervous System Demyelinating
    Diseases in Adults, 60 Arch. Neurol. 504 (2003) and Christian Confavreux et al.,
    Vaccinations and the Risk of Relapse in Multiple Sclerosis, 344 N. Eng. J. Medicine 319
    (2001). See ECF No. 94 at 4 nn.8-9.
    6
    against petitioner, much less determinative of the issue at bar. The court, therefore,
    cannot agree that the special master abused his discretion by citing to the studies that
    respondent submitted in reaching his decision.
    B.     The Special Master Did Not Abuse His Discretion by Failing to Address
    Every Flaw in the Scheller Study
    In her second objection, petitioner alleges that the special master failed to account
    for various flaws in the Scheller study—another study offered into evidence by
    respondent. ECF No. 99 at 19. “[P]etitioner agrees that the overall conclusion of the
    Scheller study did not find a statistically significant increased risk of demyelinating
    disease following the HPV vaccination,” 
    id. at 17,
    but claims that the special master’s
    “heavy reliance on the Scheller study, without acknowledgment of the flaws of the study,
    concessions of respondent’s expert, and importantly, a showing of higher crude incidence
    rate of MS in the vaccinated population aged 30-44, constitutes an abuse of discretion,”
    
    id. at 19.
    The special master cited the Scheller study as one of several epidemiological
    studies in his written decision, before stating that “[c]ollectively, these studies did not
    support [petitioner’s] argument that the HPV vaccine can aggravate (or cause) MS.” ECF
    No. 94 at 3-4. Put another way, the special master concluded that the studies presented
    by respondent did not support petitioner’s case. Nor does petitioner claim that had the
    special master accounted for the flaws she alleges, the study would have assisted her in
    carrying the burden of proof. And in any event, as the court noted with respect to
    petitioner’s first objection, the special master explicitly stated that his conclusion “does
    not rest exclusively on the epidemiology.” ECF No. 94 at 4.
    Moreover, as instructed by the Federal Circuit, the court “generally presume[s]
    that a special master considered the relevant record evidence even though he does not
    explicitly reference such evidence in his decision.” Moriarty v. Sec’y of Health &
    Human Servs., 
    844 F.3d 1322
    , 1328 (Fed. Cir. 2016). See also ECF No. 96 at 232 (the
    special master stating “I think I have considered all of the evidence even though I may
    not mention everything”). Petitioner’s own brief outlines the testimony elicited at the
    evidentiary hearing from respondent’s expert addressing a number of the alleged
    weaknesses in the Scheller study. See ECF No. 99 at 17-18. As such, the court will not
    presume—as petitioner asserts—that the special master failed to consider various ways in
    which the Scheller study may not directly apply to petitioner’s case.
    For these reasons, it was not an abuse of discretion to cite the Scheller study
    without also reciting all of petitioner’s objections to that study.
    7
    C.     The Special Master Did Not Abuse His Discretion in Considering
    Epidemiology and Did Not Elevate Petitioner’s Burden of Proof
    Petitioner’s third objection is that the special master erred in placing “great
    weight” on epidemiology in his analysis, which allegedly had the effect of elevating
    petitioner’s burden. ECF No. 99 at 24 (“To value epidemiology with such fervor, and
    specifically state that it is given ‘great weight’ compared to other special masters is an
    abuse of discretion, and not in accordance with law.”); id at 25 (arguing that “[t]he
    weight with which the Special Master relied on epidemiology is an abuse of discretion,
    which heightened petitioner’s burden”).
    As the court has noted several times in the course of this short opinion, the special
    master explicitly stated that the “epidemiology does not conclusively establish that the
    HPV vaccine cannot cause MS,” and for this reason, his conclusion “does not rest
    exclusively on the epidemiology.” ECF No. 94 at 4. The special master also
    acknowledged from the bench that “there’s a limit to epidemiology,” that petitioner “is
    not required to submit epidemiology to prove [her] case,” and that “epidemiology cannot
    prove a negative no matter how large the study.” ECF No. 96 at 242-43. And because
    the special master “consider[ed] the record as a whole,” the decision did not rest
    entirely—or even primarily—on his view of the epidemiology. 
    Id. at 231.
    There is simply no indication in the special master’s decision that he regarded the
    epidemiological evidence with what petitioner calls “fervor,” even if he expressed a
    preference, that may or may not differ from other special masters, for considering such
    evidence.
    And as to petitioner’s claim that the weight given to epidemiological studies had
    the effect of heightening petitioner’s burden, the court does not agree. Petitioner’s brief
    does not explain this contention in any detail. The court understands it, however, to be an
    argument that because the special master allegedly over-valued epidemiological evidence
    submitted by respondent, that consideration became an additional obstacle to petitioner
    proving her case. The special master, however, did not inappropriately value the
    epidemiological evidence submitted by respondent. And he did not conclude that the
    evidence disproved—or even weighed against—petitioner’s theory. He simply stated
    that “[c]ollectively, these studies did not support [petitioner’s] argument that the HPV
    vaccine can aggravate (or cause) MS.” ECF No. 94 at 4. The court fails to see how this
    impacts, much less heightens, petitioner’s burden.
    D.     The Special Master Did Not Abuse His Discretion in Analyzing Petitioner’s
    Proof of Causation
    Petitioner’s fourth objection challenges the special master’s ruling on Loving
    factor four. Petitioner’s position is that molecular mimicry between the HPV vaccine and
    8
    myelin basic protein “activates T cells that are cross-reactive with self-antigens,” thereby
    triggering an immune reaction. ECF No. 99 at 26. The special master determined that
    the molecular mimicry theory was insufficient to carry petitioner’s burden, because she
    did not present persuasive empirical evidence to support the notion that the HPV vaccine
    can aggravate MS. See ECF No. 94 at 4.
    To satisfy Loving factor four, a petitioner “must provide a reputable medical or
    scientific explanation that pertains specifically to the petitioner’s case, although the
    explanation need only be ‘legally probable, not medically or scientifically certain.’”
    
    Moberly, 592 F.3d at 1322
    (quoting Knudsen v. Sec’y of Health & Human Servs., 
    35 F.3d 543
    , 548-49 (Fed. Cir. 1994)). For a theory to be “probable,” it must be more than
    merely “plausible” or “possible.” Id.; see also LaLonde v. Sec’y of Health & Human
    Servs., 
    746 F.3d 1334
    , 1339 (Fed. Cir. 2014) (“simply identifying a ‘plausible’ theory of
    causation is insufficient for a petitioner to meet her burden of proof”) (citing 
    Moberly, 592 F.3d at 1322
    ).
    Petitioner challenges the way the special master analyzed petitioner’s molecular
    mimicry theory. The special master discounted the Wucherpfennig article because, in his
    view, that study did not find that HPV produced a “strong response” in terms of T-cell
    count. ECF No. 94 at 5; see also ECF No. 96 at 156 (respondent’s expert indicating that
    “the HPV sequences [did not] stimulate the T cell clones”). Petitioner does not seriously
    contest that finding. Instead, petitioner focuses on the special master’s treatment of the
    Kanduc article. ECF No. 99 at 27-28.
    The special master discounted the Kanduc article. In his view, the “various
    problems” identified by Kanduc as resulting from cross-reactivity do not “resemble the
    problems that appear in MS.” ECF No. 94 at 5. According to petitioner, Kanduc
    described “82 perfect overlaps between HPV16 and the human proteome, any of which
    could trigger autoimmunity in a predisposed individual.” ECF No. 99 at 28. The special
    master treated these overlaps as “possible” scenarios for cross-reactivity, but not as a
    “reliable basis for elevating this potentiality to a probability.” ECF No. 94 at 5.
    Before reaching this conclusion, the special master heard testimony on petitioner’s
    theory from her expert during the evidentiary hearing. See ECF No. 96 at 57-60
    (discussing molecular mimicry in the context of MS and discussing the Wucherpfennig
    and Kanduc articles). Petitioner’s expert testified at several points during the hearing that
    that the HPV vaccine has the potential to trigger MS. See, e.g., 
    id. at 97
    (stating that the
    HPV vaccine “can potentially” trigger MS, but also stating that he advises his MS
    patients to get vaccines); 
    id. at 99
    (noting, with regard to the Wucherpfennig article, that
    “one of the things that I kind of garner from the article is that there is the potential that
    activated T cell clones can autoreact against proteins on HPV”); 
    id. at 99
    -100 (“[O]ne of
    the important points I thought about . . . Wucherpfennig is that it may not have the most
    robust response, . . . but there is the potential that it could.”); 
    id. at 129
    (acknowledging
    9
    that the Kanduc article does not state “that the HP[V] vaccine can cause MS”); 
    id. at 131-
    32 (petitioner’s expert stating that he has not “been able to provide any studies that
    demonstrate a causal relationship between the HPV vaccine and MS,” but has offered
    studies that “it can create an autoimmune response”).
    After explaining at considerable length the framework of his analysis, the special
    master concluded that petitioner’s evidence of an exacerbated injury due to molecular
    mimicry was insufficient. In reference to petitioner’s expert’s testimony, the special
    master explained at the October 1, 2018 evidentiary hearing, as follows:
    [O]n some level you can’t say that to say there is potential reaction is
    erroneous because you could always say there is a potential for a reaction,
    but . . . I think the . . . potentiality is not the same thing as meeting a
    preponderance of the evidence.
    
    Id. at 245.
    In his written decision, the special master held that petitioner “has provided
    no reliable basis for elevating the potentiality [of molecular mimicry] to a probability.”
    ECF No. 94 at 5.
    In the court’s view, the special master did not err in his consideration of the
    molecular mimicry theory. Petitioner’s objection to his analysis is more a disagreement
    with his exercise of discretion than the identification of legal error. Petitioner argues that
    the special master “discount[ed] the evidence supporting her theory and, instead,
    require[d] direct proof of petitioner’s proffered mechanism.” ECF No. 99 at 30. The
    record does not support this position. The special master conducted a lengthy colloquy
    with petitioner’s expert, reviewed the articles petitioner’s expert presented on the subject,
    and specifically stated that he considered all of the evidence presented before reaching
    his decision. The court cannot accept petitioner’s invitation to reweigh the evidence. See
    Porter v. Sec’y of Health & Human Servs., 
    663 F.3d 1242
    , 1249 (Fed. Cir. 2011) (stating
    that the reviewing court does not “reweigh the factual evidence, assess whether the
    special master correctly evaluated the evidence, or examine the probative value of the
    evidence or the credibility of the witnesses—these are all matters within the purview of
    the fact finder”) (citations omitted).
    For these reasons, petitioner’s motion for review must be denied, and the special
    master’s decision denying compensation must be affirmed.
    IV.    Conclusion
    For the above-stated reasons, the court sustains the entitlement decision of the
    special master. Accordingly, it is hereby ORDERED that:
    (1)    Petitioner’s motion for review, ECF No. 97, is DENIED;
    10
    (2)   The decision of the special master, filed October 5, 2018, is SUSTAINED;
    (3)   The clerk’s office is directed to ENTER final judgment in accordance with
    the special master’s decision of October 5, 2018; and
    (4)   The parties shall separately FILE any proposed redactions to this opinion,
    with the text to be redacted clearly blacked out, on or before March 26,
    2019.
    IT IS SO ORDERED.
    s/Patricia E. Campbell-Smith
    PATRICIA E. CAMPBELL-SMITH
    Judge
    11