Case: 22-1371 Document: 51 Page: 1 Filed: 02/10/2023
NOTE: This disposition is nonprecedential.
United States Court of Appeals
for the Federal Circuit
______________________
TASHA LOYD, PARENT AND NEXT FRIEND OF
C.L., A MINOR,
Petitioner-Appellant
v.
SECRETARY OF HEALTH AND HUMAN
SERVICES,
Respondent-Appellee
______________________
2022-1371
______________________
Appeal from the United States Court of Federal Claims
in No. 1:16-vv-00811-EGB, Senior Judge Eric G. Bruggink.
______________________
Decided: February 10, 2023
______________________
RICHARD GAGE, Richard Gage, PC, Cheyenne, WY, ar-
gued for petitioner-appellant.
TYLER KING, Torts Branch, Civil Division, United
States Department of Justice, Washington, DC, argued for
respondent-appellee. Also represented by BRIAN M.
BOYNTON, C. SALVATORE D'ALESSIO, TRACI PATTON,
HEATHER LYNN PEARLMAN.
______________________
Case: 22-1371 Document: 51 Page: 2 Filed: 02/10/2023
2 LOYD v. HHS
Before LOURIE, TARANTO, and STOLL, Circuit Judges.
STOLL, Circuit Judge.
This is a case brought under the National Childhood
Vaccine Injury Act of 1986, 42 U.S.C. §§ 300aa-1 to -34, as
amended (the Vaccine Act). Tasha Loyd filed a petition un-
der the Act on behalf of her minor daughter C.L., alleging
that the vaccinations C.L. received caused her chronic im-
mune thrombocytopenic purpura (ITP). The special master
found that Ms. Loyd had not demonstrated by a preponder-
ance of the evidence that the vaccines caused C.L.’s chronic
ITP, and the Court of Federal Claims affirmed. For the
reasons explained below, we determine that the special
master did not abuse his discretion in making that finding.
We thus affirm the decision of the Court of Federal Claims.
BACKGROUND
Ms. Loyd’s petition alleged that C.L.’s second dose of
the pneumococcal conjugate vaccine (PCV or Prevnar®),
which she received on August 30, 2013, caused C.L.’s
chronic ITP. 1 C.L.’s medical history, both before and after
the second dose of the Prevnar vaccine, is relevant to this
appeal.
C.L. was born a healthy baby in January 2013. For the
first several months of her life, C.L. saw her pediatrician,
Dr. Laura Heimback-Graham, for regular well-child visits
and received her initial rounds of vaccinations. During and
after these visits, Ms. Loyd did not report any adverse re-
actions to these vaccines.
1 While the petition lists both the Prevnar vaccine
and the Haemophilus influenzae type b vaccine as alleg-
edly causing C.L.’s ITP, the evidence before the special
master, the decisions of the special master and the Court
of Federal Claims, and the parties’ briefing focus only on
the Prevnar vaccine. See, e.g., Appellee’s Br. 11 n.1.
Case: 22-1371 Document: 51 Page: 3 Filed: 02/10/2023
LOYD v. HHS 3
On August 30, 2013, C.L. returned to Dr. Heimback-
Graham and received, among other vaccines, the second
dose of the Prevnar vaccine. At this visit, Ms. Loyd re-
ported that C.L. had recently been fussier than normal and
had white patches on her tongue. Dr. Heimback-Graham
diagnosed C.L. with thrush and prescribed an antifungal
medication to address these concerns. The medical records
from this visit indicate that Ms. Loyd did not report any
further concerns or complaints.
Over three months after her second dose of the Prevnar
vaccine, on December 2, 2013, C.L. returned to Dr. Heim-
back-Graham to treat an infected earlobe piercing. C.L.
visited Dr. Heimback-Graham again in January 2014, over
four months after the vaccine, to treat fever, cough, and
congestion. Medical records from both visits indicate that
no other health complaints were raised, and physical ex-
aminations of C.L. were otherwise normal.
C.L. returned to her pediatrician for her one-year well-
child visit on February 3, 2014. Ms. Loyd reported that she
did not want C.L. to receive her scheduled vaccinations be-
cause C.L. was allegedly “not herself” for some time after
receiving her previous vaccinations, although the medical
records from this visit do not provide any further detail.
J.A. 94. At this visit, Dr. Heimback-Graham performed a
complete blood test (CBC), which revealed that C.L. had
normal levels of blood platelets (specifically, 340,000/µL). 2
2 The medical literature submitted as evidence be-
fore the special master explains that normal blood platelet
levels in infants range from about 200,000 to 475,000/µL.
Loyd v. Sec’y of Health & Hum. Servs., No. 16-811V,
2021
WL 2708941, at *2 n.3 (Ct. Cl. May 20, 2021) (citing K. Pa-
gana & T. Pagana, Mosby’s Manual of Diagnostic and La-
boratory Tests 156, 362 (6th ed. 2018)). Physicians can
diagnose vaccine-associated ITP when a child’s platelet lev-
els measure below 100,000/µL.
Id. (citing V. Cecinati et al.,
Case: 22-1371 Document: 51 Page: 4 Filed: 02/10/2023
4 LOYD v. HHS
Six weeks after this visit, in March 2014, C.L. again visited
her pediatrician to treat a fever. Like the multiple previous
visits, the medical records state that no other concerns or
complaints were raised.
On June 2, 2014—approximately nine months after re-
ceiving the second dose of the Prevnar vaccine—C.L. re-
turned again to see Dr. Heimback-Graham. The medical
records from this visit note excessive bruising, a tell-tale
symptom of ITP, for the first time. See J.A. 279–81
(Ms. Loyd reporting a two-week history of bruising).
Dr. Heimback-Graham ordered two CBC tests. Unlike the
February 2014 CBC test, the results from these two tests
revealed that C.L.’s blood platelet counts were low (specif-
ically, 34,000/µL and 23,000/µL). Dr. Heimback-Graham
referred C.L. to a pediatric hematologist, who diagnosed
C.L. with acute ITP that same day. Since her diagnosis,
C.L. has continued to receive treatment for her ITP—which
was classified as chronic ITP in 2015—and her blood plate-
let levels have been repeatedly tested and have remained
consistently low.
On July 8, 2016, Ms. Loyd filed a Vaccine Act petition
on behalf of C.L. The special master assigned to the case
held a hearing and ultimately found, among other things,
that the onset of C.L.’s ITP did not occur until, at the ear-
liest, May 2014, the first time at which her medical records
indicate symptoms of ITP. Loyd v. Sec’y of Health & Hum.
Servs., No. 16-811V,
2021 WL 2708941 (Ct. Cl. May 20,
2021) (“Special Master Decision”). In large part because of
the length of time between the allegedly causative vaccina-
tion and this onset date—eight to nine months—the special
master found that the record did not establish that C.L.’s
chronic ITP was more likely than not caused by the
Vaccine Administration and the Development of Immune
Thrombocytopenic Purpura in Children, 9 HUM. VACCINES
& IMMUNOTHERAPEUTICS 1, 2 (2013)).
Case: 22-1371 Document: 51 Page: 5 Filed: 02/10/2023
LOYD v. HHS 5
Prevnar vaccine. Id. at *28. Ms. Loyd moved for review of
the special master’s decision in the Court of Federal
Claims. That court determined that the special master’s
decision was neither arbitrary nor capricious and thus af-
firmed. J.A. 46–69.
Ms. Loyd timely appealed, and we have jurisdiction un-
der
28 U.S.C. § 1295(a)(3) and 42 U.S.C. § 300aa-12(f).
DISCUSSION
Petitioners can qualify for compensation under the
Vaccine Act in two ways. First, “if the petitioner can estab-
lish an injury listed on the Vaccine Act Injury Table that
occurred after the administration of a designated vaccine
within a designated period of time (“Table cases”), then
causation is presumed.” Boatmon v. Sec’y of Health &
Hum. Servs.,
941 F.3d 1351, 1354 (Fed. Cir. 2019). Second,
if a petitioner claims an injury not listed on the table (i.e.,
in an “off-Table” case), then she “must prove, by a prepon-
derance of the evidence, that the vaccine was the cause-in-
fact of the claimed injury.” Id.; 42 U.S.C. §§ 300aa-
11(c)(1)(C)(ii)(I), 300aa-13(a)(1).
To prove causation in an off-Table case, the petitioner
must “show by preponderant evidence that the vaccination
brought about [the] injury” by establishing each of the
three requirements set forth in Althen v. Secretary of
Health & Human Services,
418 F.3d 1274, 1278 (Fed. Cir.
2005): (1) a medical theory causally connecting the vac-
cination 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 relation-
ship between vaccination and injury. Moberly v. Sec’y of
Health & Hum. Servs.,
592 F.3d 1315, 1321–22 (Fed. Cir.
2010) (quoting Althen,
418 F.3d at 1278). If a petitioner
has satisfied all three Althen prongs by a preponderance of
the evidence, she is entitled to compensation unless the
government shows “by a preponderance of the evidence[]
that the injury was in fact caused by factors unrelated to
Case: 22-1371 Document: 51 Page: 6 Filed: 02/10/2023
6 LOYD v. HHS
the vaccine.” Althen,
418 F.3d at 1278 (quoting Knudsen
v. Sec’y of Health & Hum. Servs.,
35 F.3d 543, 547
(Fed. Cir. 1994)).
Under the Vaccine Act, the Court of Federal Claims re-
views a special master’s decision to determine whether it is
“arbitrary, capricious, an abuse of discretion, or otherwise
not in accordance with law.” 42 U.S.C. § 300aa-12(e)(2)(B).
Because we review de novo the Court of Federal Claims’
decision regarding a special master’s decision to deny enti-
tlement to compensation under the Vaccine Act, we effec-
tively “perform[] the same task as the Court of Federal
Claims and determine[] anew whether the special master’s
findings were arbitrary or capricious.” Lampe v. Sec’y of
Health & Hum. Servs.,
219 F.3d 1357, 1360 (Fed. Cir.
2000). We do “not reweigh the factual evidence, assess
whether the special master correctly evaluated the evi-
dence, 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.” Porter v. Sec’y of
Health & Hum. Servs.,
663 F.3d 1242, 1249 (Fed. Cir.
2011). In general, reversible error is “extremely difficult to
demonstrate” if the special master “has considered the rel-
evant evidence of record, drawn plausible inferences[,] and
articulated a rational basis for the decision.” Hines v. Sec’y
of Health & Hum. Servs.,
940 F.2d 1518, 1528 (Fed. Cir.
1991).
On appeal, Ms. Loyd makes two arguments: (1) that
the special master’s finding that the onset of C.L.’s ITP did
not occur until, at the earliest, May 2014 was arbitrary and
capricious, Appellant’s Br. 25–31; and (2) that the special
master applied the wrong legal standard by requiring the
petitioner to prove the first Althen prong by a preponder-
ance of the evidence,
id. at 31–41.
Regarding Ms. Loyd’s first argument, the special mas-
ter, “[a]fter considering the parties’ respective positions
and supporting evidence,” found “that the onset of C.L.’s
Case: 22-1371 Document: 51 Page: 7 Filed: 02/10/2023
LOYD v. HHS 7
chronic ITP more likely than not occurred in May 2014.”
Special Master Decision at *25. In making this determina-
tion, the special master explicitly considered all of the evi-
dence provided by Ms. Loyd. Specifically, he considered
and discussed, among other things, Ms. Loyd’s own testi-
mony,
id. at *5–7; photographs taken by Ms. Loyd that al-
legedly showed bruising on C.L. in the fall of 2013, 3 id.
at *16; a prescriber reference for Prevnar, which listed
warnings for providers, id. at *8; reports on the Vaccine
Adverse Events Reporting System listing adverse reactions
to the Prevnar vaccine, id.; and a letter from Dr. Berger,
one of C.L.’s treating physicians who did not testify at the
hearing, id. at *15–16. Finally, the special master dis-
cussed at particular length the testimony of petitioner’s ex-
pert, Dr. Gershwin, who presented his medical theory at
the hearing that the Prevnar vaccine could have caused
C.L.’s chronic ITP through a concept called “molecular
mimicry.” Id. at *7–11.
The special master also considered the evidence sub-
mitted by the government, such as many pieces of medical
literature, including large scale epidemiological studies
that showed no significant link between Prevnar and ITP,
id. at *13–15; C.L.’s medical record itself, which did not
have any indication of ITP symptoms until, at the earliest,
two to three weeks before June 2, 2014, id. at *1–5; and the
testimony from the government’s two medical experts,
Dr. Strouse and Dr. MacGinnitie, id. at *11–15. The gov-
ernment’s experts uniformly testified that Dr. Gershwin’s
molecular mimicry theory was unlikely. In Dr. Strouse and
3 The special master noted that several of these pho-
tographs were neither authenticated nor had any metadata
indicating the date on which they were taken. Despite
these authentication deficiencies, the special master con-
sidered them as part of his weighing of the evidence. Spe-
cial Master Decision at *16, *27 n.27.
Case: 22-1371 Document: 51 Page: 8 Filed: 02/10/2023
8 LOYD v. HHS
Dr. MacGinnitie’s view, this theory was unlikely, in part
because it had only been used to connect other, non-Prev-
nar vaccines to ITP. It was also unlikely, in their view,
because C.L.’s medical record—which showed normal
platelet counts in February 2014, five months after receiv-
ing the vaccine—controverted Dr. Gershwin’s theory that
the onset of C.L.’s ITP occurred shortly after vaccination.
The government’s experts also testified regarding the pho-
tographs submitted by Ms. Loyd. The two experts agreed
that while the photographs did show “some evidence of
bruising,” they did not show petechiae, a unique type of
bruising associated with ITP. Id. at *11–12, *15. The ex-
perts explained that the photographs instead showed
bruising that was “typical” and not unusual for a young
child of C.L.’s age. Id.
For each piece of evidence presented, both by Ms. Loyd
and by the government, the special master discussed its
relevance to the case, its credibility, and its strength; in
other words, the special master weighed each piece of evi-
dence. On balance, the special master found that it was
more likely than not that the onset of C.L.’s chronic ITP
was no earlier than May 2014. Id. at *24–27. The special
master further explained that it was undisputed that an
onset date of May 2014—more than nine months after C.L.
received the second dose of Prevnar—was too remote from
the date of vaccination to conclude that Prevnar caused
C.L.’s condition. Id. at *28 (noting that “Dr. Gershwin . . .
conceded that an onset of five to ten months post-vaccina-
tion would not be medically acceptable for purposes of prov-
ing vaccine causation”); J.A. 54 (Court of Federal Claims
noting same concession). Accordingly, the special master
determined that the petitioner had not met her burden to
prove Althen prong three, which requires a proximate tem-
poral relationship between the vaccination and the injury.
In view of the special master’s analysis and the evi-
dence of record, we conclude that this factual finding—that
C.L.’s chronic ITP more likely than not began no earlier
Case: 22-1371 Document: 51 Page: 9 Filed: 02/10/2023
LOYD v. HHS 9
than May 2014—was not arbitrary or capricious. The spe-
cial master’s factfinding is supported by the evidence of rec-
ord, including, among other things, C.L.’s medical records,
which did not note any symptoms of ITP until two to three
weeks before her June 2, 2014, medical visit. In addition,
the special master found credible the testimony of the gov-
ernment’s experts that the Prevnar vaccine has not been
linked to ITP and that Dr. Gershwin’s proposed medical
theory was unlikely. We do not see that the special mas-
ter’s factfinding on this point was unreasonable. In other
words, “the special master has considered the relevant ev-
idence of record, drawn plausible inferences[,] and articu-
lated a rational basis for the decision,” Hines,
940 F.2d at
1528, and thus his finding is not arbitrary or capricious.
On appeal, Ms. Loyd argues that certain evidence con-
flicts with the special master’s ultimate conclusion. Specif-
ically, Ms. Loyd highlights the photos she presented
showing bruising on C.L. and Dr. Gershwin’s testimony
that he once treated a patient whose platelet levels would
vary when presented with poison oak, a phenomenon which
could potentially explain C.L.’s normal platelet levels in
February 2014. Appellant’s Br. 27–29. First, to the extent
that there are conflicts in the testimonial evidence pre-
sented at the hearing, those conflicts were for the special
master to resolve. See Lampe,
219 F.3d at 1362 (A special
master’s “assessments of the credibility of the witnesses . . .
are virtually unchallengeable on appeal.”). Second, at bot-
tom, Ms. Loyd’s appellate argument on this issue essen-
tially asks us to reweigh the evidence, something we cannot
do under the arbitrary and capricious standard of review.
See Motor Vehicle Mfrs. Ass’n of U.S., Inc. v. State Farm
Mut. Auto. Ins. Co.,
463 U.S. 29, 43 (1983); see also Porter,
663 F.3d at 1249 (“[E]valuat[ing] the evidence, . . . [and]
examin[ing] the probative value of the evidence or the cred-
ibility of the witnesses . . . are all matters within the pur-
view of the fact finder.”). Because the special master’s fact
finding is “based on evidence in the record that is not
Case: 22-1371 Document: 51 Page: 10 Filed: 02/10/2023
10 LOYD v. HHS
wholly implausible, we are compelled to uphold that find-
ing as not being arbitrary or capricious.” Cedillo v. Sec’y of
Health & Hum. Servs.,
617 F.3d 1328, 1338 (Fed. Cir. 2010)
(cleaned up). And given Dr. Gershwin’s concession that
this date precludes a finding of causation under Althen
prong three, we thus affirm the special master’s determi-
nation that the petitioner has not shown that each of the
Althen prongs has been met.
Ms. Loyd also argues on appeal that the special master
applied an improper legal standard in his analysis of Al-
then prong one. Appellant’s Br. 31–41. As explained
above, however, our affirmance of the special master’s fact
finding that the onset of C.L.’s ITP was no earlier than
May 2014 resolves Althen prong three against the peti-
tioner. Accordingly, we need not and do not reach this ar-
gument regarding Althen prong one.
CONCLUSION
Like the special master, we “have great sympathy . . .
for [Ms. Loyd’s] desire to ascertain a possible cause for
C.L.’s medical distress.” Special Master Decision at *32.
The special master’s comprehensive decision, however, was
based on a thorough examination of the large body of evi-
dence submitted in this case. We agree with the Court of
Federal Claims that the special master’s weighing of that
evidence was neither arbitrary nor capricious. We there-
fore affirm.
AFFIRMED
COSTS
No costs.
