Ericka Mar v. Abbott Laboratories
CourtCourt of Appeals for the Seventh Circuit
Date FiledJuly 24, 2026
Docket25-2587
JudgeBrennan
StatusPublished
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Full Opinion
In the
United States Court of Appeals
For the Seventh Circuit
____________________
No. 25-2587
IN RE: ABBOTT LABORATORIES, et al., PRETERM INFANT
NUTRITION PRODUCTS LIABILITY LITIGATION
ERICKA MAR, as administratrix of the ESTATE OF RAILEE MAR,
Plaintiff-Appellant,
v.
ABBOTT LABORATORIES,
Defendant-Appellee.
____________________
Appeal from the United States District Court for the
Northern District of Illinois, Eastern Division.
Nos. 1:22-cv-00071 & 1:22-cv-00232 — Rebecca R. Pallmeyer, Judge.
____________________
ARGUED MAY 20, 2026 — DECIDED JULY 24, 2026
____________________
Before BRENNAN, Chief Judge, and SCUDDER and JACKSON-
AKIWUMI, Circuit Judges.
BRENNAN, Chief Judge. In 2014 RaiLee Mar was born 12
weeks prematurely. Initially, she was fed her mother’s milk.
But over a week later, her mother could no longer produce
usable milk, and the hospital had no donor milk. So, doctors
2 No. 25-2587
fed RaiLee Similac Special Care 24—a cow’s-milk-based
infant formula produced by Abbott. A day later, RaiLee was
diagnosed with a gastrointestinal disease, necrotizing entero-
colitis (“NEC”). The next day, tragically, she died.
RaiLee’s mother Ericka Mar sued Abbott, alleging the
company failed to warn about the dangers associated with its
formula, including that it could cause NEC. Her case joined
hundreds of others in multidistrict litigation and was selected
as a bellwether. After discovery, the district court granted Ab-
bott’s motion for summary judgment, and Mar appeals. We
affirm because she has not shown that the warning she be-
lieves Abbott should have used would have prevented her
daughter’s death.
I
NEC is a serious “gastrointestinal disease that commonly
affects preterm infants and is a major cause of morbidity and
mortality.” Dhirendra Singh et al., Necrotizing Enterocolitis:
Bench to Bedside Approaches and Advancing Our Understanding
of Disease Pathogenesis, FRONTIERS IN PEDIATRICS, Jan. 11, 2023,
at 1, 1. Symptoms include swelling of the abdomen, vomiting,
and gas within the walls of the bowel, all of which can cause
death. DEP’T OF HEALTH AND HUM. SERVS., NECROTIZING
ENTEROCOLITIS (NEC) IN PRETERM INFANTS, 1 (2024) (“HHS
NEC”). Though newborns of any gestational age can develop
NEC, scientists believe that preterm infants are especially at
risk because of their underdeveloped immune systems. Singh,
supra at 3.
“One of the ways to decrease NEC incidence is to provide
maternal breast milk to infants.” Id. at 2. Studies in published
guidelines from the American Academy of Pediatrics (“the
No. 25-2587 3
Academy”) show a 58% decrease in NEC when breast milk
was fed to preterm infants. See the Academy, Breastfeeding and
the Use of Human Milk, 129 PEDIATRICS e827, e829 (2012). An-
other study found a 77% reduction in NEC in preterm infants
fed exclusively breast milk. Id. According to Abbott’s evi-
dence, neonatologists have long known that breast milk con-
fers unique nutritional benefits. Still, the link between NEC
and breast milk is not fully understood.
Cow’s-milk-based formula appears to not have the same
NEC-reducing traits as breast milk. For example, formula-fed
babies were “6-10 times” more likely to develop NEC “than
in those fed breast milk alone.” A. Lucas & T.J. Cole, Breast
Milk and Neonatal Necrotizing Enterocolitis, 336 MED. SCI. 1519,
1519 (1990). There are two ways to interpret this link. Either
formula causes NEC, or formula is less effective at preventing
the disease than breast milk. Still, “there are substantial gaps
in knowledge” on the question of causation and nutrition. See
HHS NEC, supra, at 5.
Current scientific evidence recommends breast milk from
the baby’s mother as the first choice to feed preterm infants.
The next best alternative is donor breast milk. Last, doctors
turn to cow’s-milk-based formulas. The Abbott formula chal-
lenged here comes with the warning, “USE AS DIRECTED BY
A DOCTOR.”
On New Year’s Day 2014, RaiLee Mar was born at a hospi-
tal in Summersville, West Virginia. She arrived 12 weeks
prematurely, putting her at high risk of developing NEC. She
was airlifted to the neonatal intensive care unit at Charleston
Area Medical Center. For the first four days, doctors fed
RaiLee intravenously. On the fifth day, she was fed through a
stomach tube. Over a week later, Mar could not produce any
4 No. 25-2587
more usable breast milk; the small amount that she did was
tainted with blood from over-pumping.
The hospital turned to the Abbott formula at issue because
it had no donor milk. Another patient at the hospital who had
recently given birth offered to donate some of her breast milk
to RaiLee. But hospital policy forbade sharing milk because
diseases can be transmitted without first treating the milk. So,
RaiLee’s medical team changed her diet to 50% milk from Mar
and 50% Abbott’s formula. She was fed this mixed diet three
times between January 14 and 15. On January 15, she was di-
agnosed with NEC. She passed away the next day.
About eight years later, in January 2022, Mar sued Abbott,
alleging various theories of liability: strict liability design de-
fect; negligence; and failure to warn. Her lawsuit joined hun-
dreds of like cases against Abbott as part of a multi-district
litigation proceeding. The parties selected Mar’s case as one
of four bellwether cases to proceed to trial.
Abbott moved for summary judgment, which the district
court granted. The court first concluded that Mar had not
shown there was an alternative, feasible design for Abbott’s
formula. Second, the court held that Mar had not produced
sufficient evidence for its failure-to-warn theory. To prove
this theory, Mar had to show that a different warning would
have prevented RaiLee’s death. Her proposed warning would
not have made a difference, the court reasoned, because the
cow’s milk formula was the only available food source. More-
over, concluding that Mar’s alternative warning would have
prompted the hospital to create a time- and resource-intensive
donor milk program was speculative.
No. 25-2587 5
Mar moved to reconsider under Federal Rule of Civil Pro-
cedure 59(e), asking to present two new witnesses to support
her failure-to-warn theory. Because both witnesses were
available to Mar during discovery, the district court ruled she
could not now offer them via a Rule 59(e) motion.
Mar appeals the failure-to-warn and Rule 59 rulings.
II
We review the district court’s grant of summary judgment
de novo, construing the facts in the light most favorable to
Mar and drawing all inferences in her favor. Lewis v. Ind. Dep’t
of Transp., 173 F.4th 876, 882 (7th Cir. 2026). But not “every
conceivable inference” is drawn in the non-movant’s favor.
FKFJ, Inc. v. Village of Worth, 11 F.4th 574, 585 (7th Cir. 2021).
Only those that are “reasonable” will be, and inferences “sup-
ported by only speculation or conjecture” are not reasonable.
Osborn v. JAB Mgmt. Servs., Inc., 126 F.4th 1250, 1258 (7th Cir.
2025).
West Virginia holds manufacturers liable for not warning
consumers about their products’ dangers.1 Morningstar v.
Black and Decker Mfg. Co., 253 S.E.2d 666, 682 (W. Va. 1979).
Liability for failure to warn, whether based on strict liability
or negligence, requires a plaintiff to prove two elements. First,
he must show “it was reasonably foreseeable to the manufac-
turer that the product would be unreasonably dangerous if
distributed without a warning.” Church v. Wesson, 385 S.E.2d
393, 396 (W. Va. 1989). Second, the manufacturer’s failure to
warn of the dangers must have been the cause in fact of the
injuries. Tracy v. Cottrell ex rel., 524 S.E.2d 879, 890 n.9 (W. Va.
1 The parties have agreed that West Virginia law applies.
6 No. 25-2587
1999). Said otherwise, another warning must have “made a
difference.” Id.
The warning on Abbott’s formula stated, “USE AS
DIRECTED BY A DOCTOR.” Mar’s regulatory and labeling
expert, Dr. Scheer, offered what he opined was a compara-
tively more effective and adequate warning: “human milk has
a lower risk of NEC than formula.” This label would have pre-
vented RaiLee’s death, Mar argues. Abbott disagrees; after all,
the hospital had to feed RaiLee something, and there was
nothing else on hand—the hospital had no donor milk, and
Mar could not produce any more usable breast milk. So, the
treating physicians had no other option but Abbott’s formula.
Mar replies that her alternative warning would have made
a difference in three ways. And any reasonable counterfactual
inferences, she reminds us, are “to be believed” and left for
the jury to credit. Groh v. Ramirez, 540 U.S. 551, 562 (2004).
First, Mar claims that had Abbott used her alternative
warning, the hospital would have made efforts to implement
a donor-milk program. Donor milk then could have been fed
to RaiLee. To support this counterfactual, she looks to the
deposition testimony of Dr. Maxwell, RaiLee’s treating physi-
cian. She focuses on one exchange. Dr. Maxwell was asked,
“[i]f you knew back in 2014 that formula was the primary risk
factor or significantly increased the risk of NEC, would you
have made efforts to get donor milk at that time?” He re-
sponded, in part, “we would have tried, yes, to get donor milk
maybe quicker than we did.” This concession, Mar argues,
creates a reasonable inference that her alternative warning
would have spurred the creation of a donor-milk program.
No. 25-2587 7
Mar overreads Dr. Maxwell’s testimony. Examining the
full transcript, he believed that creating a donor-milk pro-
gram would have been an immense challenge. Doing so, he
explained, would be “very expensive” and take years of effort.
Indeed, it took five years before the hospital implemented a
donor milk program, well after RaiLee’s death; it was not
something that happened “overnight.” Further, Dr. Maxwell
was aware that the Academy recommends hospitals carry
only breast milk, advice he believed “in the Appalachian area
is probably impossible.” That is, in part, because the record
shows several hurdles to clear before establishing a donor-
milk program: the type of containers, labeling techniques and
transportation, personnel and training, storage, and thawing
and warming methods.
Another hurdle to such a program is that approval is re-
quired from more than just the doctors. As Dr. Maxwell ex-
plained, the hospital board and foundation also had to agree
to the program. So even if all the treating physicians had read
the alternative warning label, without board approval, the
record indicates that the donor milk program still may not
have existed in time to save RaiLee.
Moreover, at the time RaiLee’s treating physicians knew
of the connection between NEC and formula. Since 2011, Dr.
Maxwell, a member of the Academy, stated he was “aware
that formula feeding was associated with higher rates” of
NEC. He admits he “must have read” the 2012 Statement on
Breastfeeding and the Use of Human Milk. Dr. Shah, another
of RaiLee’s treating physicians and also an Academy member,
regularly read literature about the benefits of human milk and
reducing NEC risks. So RaiLee’s doctors likely knew of the
relationship between NEC and formula, and yet there was no
8 No. 25-2587
donor milk program. Therefore, the proffered alternative
warning, which links NEC and formula, would have made no
difference.
To be sure, Dr. Maxwell did acknowledge that the hospital
could have created a donor-milk program. But that single
statement is a small fraction of his testimony on this topic.
Given that Dr. Maxwell already knew of the association
between NEC and formula, and his explanation of the great
effort and expense necessary to obtain donor milk, it is not
reasonable to infer that Mar’s alternative warning would have
catalyzed the creation of such a program. Indeed, Dr. Max-
well stands by his treatment decisions for RaiLee.
Mar’s inference, then, is speculative. And we “will not
draw inferences that are supported only by speculation.” In re
Greenpoint Tactical Income Fund LLC, 168 F.4th 1002, 1008 (7th
Cir. 2026). In the end, the district court correctly observed that
Mar “overstates the strength” of Dr. Maxwell’s testimony.
Mar’s second argument focuses on what happened at the
hospital. She was struggling to produce breast milk, and the
milk she did pump contained blood, which she was told to
discard. Another patient offered to share her breast milk. But
sharing was against hospital policy because untested, unpas-
teurized milk can transmit diseases to the baby. Even so, Mar
claims that had the hospital seen her alternative warning,
physicians would have selected the unpasteurized milk in-
stead of Abbott’s formula.
Irrespective of Abbott’s warnings, the hospital prohibited
the sharing of untested, unpasteurized breast milk. Dr. Max-
well explained why: “we don’t know the medical history of
the person that’s providing the milk. For all that we know she
No. 25-2587 9
might have hepatitis or HIV or something else.” As well, a
nurse practitioner who testified acknowledged that the hospi-
tal did not want to “assum[e] the risk of the donor mother po-
tentially transmitting disease,” which is why hospital policy
was to not share breast milk. So, as the district court correctly
observed, Mar cannot point to evidence that the hospital
would have changed its policy in light of a different warning
on Abbott’s formula. Concluding otherwise requires conjec-
ture.
Third, Mar claims that had Abbott used her alternative
warning, the jury could have inferred that she would have de-
clined formula and refused to discard her blood-tainted milk.
This argument falls short, though, because Mar did not read
Abbott’s original warning. West Virginia law requires a plain-
tiff first read the existing warning in failure-to-warn claims.
See, e.g., Howard v. Eaton Corp., No. 16–0055, 2016 WL 6651592,
at *4 (W. Va. Nov. 10, 2016); Meade v. Parsley, No. 2:09–cv–
00388, 2010 WL 4909435, at *9–10 (S.D. W. Va. Nov. 24, 2010);
Shanklin v. Allis-Chalmers Mfg., 383 F.2d 819, 823–24 (4th Cir.
1967) (West Virginia law). We do not know how Mar would
react to reading the allegedly improper warning label, so we
cannot determine how she would respond to reading a differ-
ent one.
To Mar, the inferences required by all three of her argu-
ments are reasonable. She offers Cloutier v. GoJet Airlines, LLC,
996 F.3d 426 (7th Cir. 2021), for the proposition that counter-
factual inferences are for a jury to decide. The inferences the
jury was permitted to weigh in that case, she contends, are the
same as the inferences here.
In Cloutier, the plaintiff was diagnosed with diabetes and
prescribed medication. Id. at 430. He missed the statutory
10 No. 25-2587
deadline for his return-to-work clearance because his em-
ployer, GoJet, failed to provide him with the required notices.
Id. at 440–41. But, he argued, “had he been given the notices
that GoJet was required to give him,” he would not have
missed the deadline. Id. at 440 (citation modified). That is
speculative, GoJet countered, because the plaintiff could not
prove what might happen in an alternative world. Id. at 441.
We disagreed, emphasizing that counterfactual inferences
are permissible only if sufficiently grounded in the record. Id.
And importantly, GoJet offered no evidence to doubt those
inferences. So, with evidence from the plaintiff, a jury could
have drawn reasonable inferences in his favor. “GoJet argues
[plaintiff] had no control over his doctors … [but] [plaintiff]
testified that he could have received his approval in time if he
had pushed his doctors. Absent concrete evidence to the contrary,
a reasonable jury could have decided to credit that testi-
mony.” Id. at 442 (emphasis added). And “GoJet argues that
[plaintiff] also merely speculated about the FAA approving
him sooner than September 4, 2014 … however, GoJet does
not point to any evidence of its own undermining [plaintiff’s]
testimony.” Id.
So, Mar correctly reads Cloutier that counterfactuals can
be submitted to the jury. But not all qualify. Only those with
supporting record evidence and in which the defendant did
“not point to any evidence of its own undermining the [plain-
tiff’s] testimony” may reach the jury. Id. Cloutier does not help
Mar because Abbott provides strong evidence in support of
its position.
Of course, we credit all of Mar’s evidence and
acknowledge her arguments. And summary judgment is not
a replacement for trials. Waldridge v. Am. Hoechst Corp., 24 F.3d
No. 25-2587 11
918, 920 (7th Cir. 1994). Even so, the inferences she asks this
court to draw from Dr. Maxwell’s statements and Mar’s alter-
native warning are too speculative to defeat summary judg-
ment. Cf. Waukegan Potawatomi Casino, LLC v. City of Waukegan,
128 F.4th 871, 878 (7th Cir. 2025) (“string of inferences” cannot
defeat summary judgment).
Abbott requests that we take one further step and rule on
a broader topic of causation. The company asks us to conclude
that Mar has not produced sufficient evidence to find that Ab-
bott’s formula was a “but for” cause of NEC. As the district
court observed, the answer to that question may turn on how
RaiLee’s feeding schedule is measured. We need not reach
this weighty issue. For this appeal, it is sufficient to conclude
that on this evidence, Mar’s suggested alternative label would
not have prevented RaiLee’s death.
III
To Mar’s credit, she tried to bolster the inferences from her
evidence with further proof. She filed a Rule 59(e) motion for
reconsideration with the district court, referencing two pieces
of “newly discovered evidence.” First, RaiLee’s father An-
thony Mar explained that had he known about the risk of
NEC from Abbott’s formula, he would have pursued different
options to feed RaiLee, such as through a donor breast milk
system or taken her to a different hospital. Second, Dr. Bar-
Yam, a physician at a Boston-based hospital, stated that donor
milk could be sent from her own milk bank to RaiLee’s hospi-
tal within 24 hours. The district court denied Mar’s motion,
which we review for abuse of discretion. Reilly v. Will Cnty.
Sheriff’s Off., 142 F.4th 924, 929 (7th Cir. 2025).
12 No. 25-2587
Rule 59(e) states, “[a] motion to alter or amend a judgment
must be filed no later than 28 days after the entry of the judg-
ment.” FED. R. CIV. P. 59(e). The movant must “present either
newly discovered evidence or establish a manifest error of
law or fact.” Oto v. Metro. Life Ins., 224 F.3d 601, 606 (7th Cir.
2000). Mar argues the former—that her evidence is newly dis-
covered.
But “[a] party may not use a motion for reconsideration to
introduce new evidence that could have been presented ear-
lier.” Id. Mar knew about her two witnesses at the time of
summary judgment. RaiLee’s father, known to Mar, could
have been subpoenaed or ordered to testify. And Mar knew
of Dr. Bar-Yam’s proposed testimony before the summary
judgment hearing. These witnesses, then, are not “newly dis-
covered” evidence, and the district court did not abuse its dis-
cretion in denying Mar’s motion. But even if the witnesses
had been “newly discovered,” the district court concluded
that their testimony would not have moved the needle for
Mar, a decision with which we have no quarrel.
* * *
This is a tragic case by any measure. But Mar has not
shown that her alternative warning would have made a dif-
ference. And her motion to reconsider was properly denied.
AFFIRMED