Brooke Mason v. Cook County, Illinois

In the United States Court of Appeals For the Seventh Circuit ____________________ No. 25-2743 BROOKE MASON, Plaintiff-Appellant, v. COOK COUNTY, ILLINOIS, Defendant-Appellee. ____________________ Appeal from the United States District Court for the Northern District of Illinois, Eastern Division. No. 1:23-cv-16339 — Matthew F. Kennelly, Judge. ____________________ ARGUED JUNE 2, 2026 — DECIDED SEPTEMBER 28, 2026 ____________________ Before JACKSON-AKIWUMI, LEE, and TAIBLESON, Circuit Judges. LEE, Circuit Judge. Brooke Mason was fired from her job as a hospital pharmacist after she refused to obtain a COVID-19 vaccine, purportedly for religious reasons. She sued Cook County for religious discrimination in violation of Title VII of the Civil Rights Act of 1964. See 42 U.S.C. § 2000e-2(a). The district court granted summary judgment to the County, find- ing no dispute of material fact that the County would have 2 No. 25-2743 faced undue hardship by exempting Mason from the manda- tory vaccine policy. We affirm. I We construe the facts in the light most favorable to Mason, the party opposing summary judgment. Lohmeier v. Gottlieb Mem’l Hosp., 147 F.4th 817, 821 (7th Cir. 2025). Mason was an employee of Cook County Health, which is operated by Cook County (collectively, “the County”). The County operates John H. Stroger Jr. Hospital, where Mason worked as a phar- macist from 2010 through May 2022. She worked in a room with twenty other pharmacists and forty pharmacy techni- cians. She also counseled patients from the pharmacy win- dow one day per month, and she brought medications to the floor of the hospital where patients with COVID-19 were treated. The COVID-19 pandemic strained the County’s already short-staffed healthcare system. Alongside a wave of infec- tions in the general population, hospital staff contracted the virus at increasingly high rates. Seeking to limit the spread of COVID-19, the County implemented a policy in August 2021 mandating that staff members receive the COVID-19 vaccine by October 2021. The County based this policy on guidance from federal and state public health authorities. The Center for Disease Control and Prevention (CDC) found that COVID-19 vaccina- tion was the best way to reduce transmission and prevent se- vere illness, hospitalization, and death. Other evidence had shown a vicious cycle of infection within hospitals: healthcare workers faced increased risk of contracting COVID-19 through patients and fellow staff, and healthcare workers in No. 25-2743 3 turn faced increased risk of infecting their medically vulnera- ble patients. The County determined that other mitigation methods alone, such as masking, social distancing, and test- ing, did not sufficiently address patient and employee safety. Employees could request an exemption from this policy based on a sincerely held religious belief. Based on guidance from the County’s Infection Control and Epidemiology De- partment and the CDC, the County determined that exemp- tions could be granted only to employees whose jobs could be performed fully remotely. Even employees not engaged in di- rect patient care needed to be vaccinated for in-person work, the County determined, because they had close contact with other employees who did have patient care duties. Approxi- mately 102 Cook County Health employees sought a religious exemption; exemptions were granted to 9 who could work re- motely. In September 2021, Mason requested an exemption from the vaccine mandate based on her Christian faith. Her request quoted 1 Corinthians 6:19: “Or do you not know that your body is a temple of the Holy Spirit within you, whom you have from God? You are not your own for you were bought with a price. So glorify God in your body.” She further de- scribed why vaccination conflicted with her faith: I am unable to comply with Cook County Health’s Covid vaccine mandate as it runs counter to my Chris- tian beliefs and request an accommodation. My beliefs are an all encompassing guide, leading my daily life and central to these beliefs is the requirement to keep my body and soul pure. Although I am not perfect I strive to honor the Lord our Savior in all I do. God’s word tells us to keep thy body pure: My body is the 4 No. 25-2743 temple of the Holy Spirit and shall not be defiled. I am fully immunized as the good Lord intended. Thank you for your consideration. The County informed Mason that it could not grant her re- quest because doing so would “compromise workplace safety… [and] pose an undue hardship.” The County allowed Mason 90 days to apply to a remote position within their sys- tem, but no such positions were available. At the end of this 90-day period, in May 2022, the County fired Mason. Mason filed this lawsuit in November 2023. She asserted that the County’s denial of religious accommodation and later discharge violated Title VII of the Civil Rights Act of 1964. See 42 U.S.C. § 2000e-2(a). She also alluded to a discrimination claim based on disparate treatment, stating that another County employee with the title “Sanitarian I” violated the vaccine policy but was not fired like she was. This employee, who worked in Rolling Meadows for the Department of Pub- lic Health (an affiliate of Cook County Health), was partici- pating in a blind study on the COVID-19 vaccine but ulti- mately received the vaccine. The County moved for summary judgment, and the dis- trict court granted the motion. The court assumed Mason could establish a prima facie case of religious discrimination (based on the County’s failure to accommodate a religious be- lief) but concluded that no reasonable juror could find that the County could accommodate her request without suffering undue hardship. Allowing her to work unvaccinated during a public health crisis would have “jeopardized the health of [County] staff and patients.” The court also determined that the Sanitarian I employee was not similarly situated to Mason No. 25-2743 5 because that employee did not work at Stroger Hospital, so the disparate treatment claim failed. II A. Failure-to-Accommodate Claim Under Title VII, an employer may not discriminate against any individual with respect to their employment because of the individual’s religion. 42 U.S.C. § 2000e-2(a)(1). To sustain a claim for failure to accommodate a religious belief, an em- ployee needs to establish that (1) her belief was religious and conflicted with her employer’s requirements, (2) she notified her employer of her religious belief, and (3) her need for a re- ligious accommodation was a motivating factor in the adverse employment decision. See Kluge v. Brownsburg Cmty. Sch. Corp., 150 F.4th 792, 802 (7th Cir. 2025). Then, the burden shifts to the employer to show that any reasonable accommodation would have resulted in undue hardship. Id. at 802–03; 42 U.S.C. § 2000e(j). This court reviews a grant of summary judg- ment de novo. Lohmeier, 147 F.4th at 825. We jump straight to the matter of undue hardship. (Like the district court, we assume without deciding that Mason has stated a prima facie case of failure to accommodate based on a sincerely held religious belief). Mason challenges the district court’s conclusion that no reasonable juror could find that ac- commodating her would not cause undue hardship to the County. She maintains that her continued practice—working unvaccinated, using other transmission-prevention methods such as masking and social distancing—could not possibly impose additional costs because that “was exactly what she had been doing until the moment she was forbidden from do- ing it.” 6 No. 25-2743 An organization suffers undue hardship when “granting an accommodation would result in substantial increased costs in relation to the conduct of its particular business.” Groff v. DeJoy, 600 U.S. 447, 470 (2023). This inquiry is fact-specific; courts look to “all relevant factors … including the particular accommodations at issue and their practical impact in light of the nature, size, and operating cost” of the employer. Kluge, 150 F.4th at 803 (quoting Groff, 600 U.S. at 470–71). In similar factual scenarios, several of our sister circuits have upheld findings of undue hardship regarding religious exemptions to COVID-19 vaccine policies. See, e.g., Hall v. Sheppard Pratt Health Sys., Inc., 155 F.4th 747 (4th Cir. 2025) (affirming sum- mary judgment because allowing admissions coordinator at a clinic to work unvaccinated would have constituted undue hardship for hospital system by jeopardizing patient and em- ployee safety and increasing risk of disruptive outbreaks in a sensitive environment); Peterson v. Snohomish Reg’l Fire & Res- cue, 150 F.4th 1211 (9th Cir. 2025) (same for firefighters at fire department); Kizer v. St. Jude Child.’s Rsch. Hosp., No. 24-5207, 2024 WL 4816856 (6th Cir. Nov. 18, 2024) (same for records analyst at hospital). We agree with the district court that the County made an adequate showing at this stage that accommodating Mason could not be accomplished without undue hardship, and that no triable issues of material fact remained. At summary judg- ment, the County provided declarations from its Associate Chief Human Resources Officer, Equal Employment Oppor- tunity Director, and Department Chair of Infection Control and Epidemiology. They describe the County’s decision-mak- ing process regarding the protective measures taken through- out the pandemic, explaining that the County’s operations had been jeopardized by healthcare workers’ high risk of No. 25-2743 7 contracting and transmitting COVID-19 compared to the gen- eral population. According to these individuals, outbreaks among staff strained the County’s ability to provide necessary services, and vaccination afforded additional protection against the increased risk of staff contracting COVID-19 and infecting medically vulnerable patients. Thus, once the vac- cine was available, the County determined, based on scientific research and CDC guidance, that masking and social distanc- ing alone did not adequately reduce risks to patient and em- ployee safety nor the operational costs of likely staff short- ages. See Peterson, 150 F.4th at 1218–20. Our dissenting colleague has no disagreement with the le- gal framework the district court applied but believes that the County failed to meet its burden to prove that accommodat- ing Mason would have caused an undue hardship to its oper- ations, citing Groff, 600 U.S. 447, and EEOC v. Abercrombie and Fitch Stores, Inc., 575 U.S. 768 (2015). But, as the Supreme Court has stated time and again, when assessing whether a requested accommodation amounts to an “undue hardship,” we cannot consider the accommodation in isolation but must consider it “in the context of an employer’s business” in a “common sense manner.” Groff, 600 U.S. at 471. See also id. at 468 (noting that “‘undue hardship’ is shown when a burden is substantial in the overall context of an employer’s busi- ness.”). Here, Mason worked as a pharmacist in a hospital setting. She not only worked in the same room with numerous other pharmacists and technicians, but, as a pharmacist, she regu- larly interacted with patients and visited patient floors, where the risks and consequences of spreading the COVID-19 virus were high. This context is markedly different from Groff, 8 No. 25-2743 where an employee’s religion precluded him from delivering mail for the Postal Service on Sundays, and from Abercrombie, where an employee’s religious beliefs prevented her from complying with the store’s no-headwear policy. Groff, 600 U.S. at 454–55; Abercrombie, 575 U.S. at 770. This is not to say that the County could not have done more in this case. For example, it could have presented expert testimony detailing why individual masking and social dis- tancing would not have adequately protected the hospital’s patients and employees from the virus as compared to uni- versal vaccination (although the affidavits do cite to applica- ble CDC guidance and scientific studies on those points). And it could have recounted in detail the analytical steps it took to arrive at this conclusion as well as, perhaps, a roster of the different positions at the hospital where an employee with Mason’s qualifications could work. But, as our colleague acknowledges, the County did pre- sent affidavits attesting that “other mitigation methods, such as masking, social distancing, and regular COVID-19 testing did not sufficiently address the patient and employee safety risks across its facilities.” For example, one affiant stated that the County’s “decision to only allow vaccinated employees to work in patient-facing and employee-facing roles in person was based on the CDC’s recommendation that vaccination is the best way to protect against severe illness, hospitalization and death, and the best way to reduce transmission.” Moreo- ver, the County’s own experiences in 2020 and 2021 alerted its leaders “that healthcare workers were at increased risk of con- tracting COVID-19 through infected patients and other healthcare staff, and that healthcare workers were at in- creased risk of infecting patients, including individuals who No. 25-2743 9 were medically vulnerable.” Another affiant added, “Health care workers at [the facility] are in regular contact with per- sons at increased risk of serious complications and death from COVID-19, including persons who are immunocompro- mised, have other comorbidities, and/or are elderly.” The dissent believes such statements are too conclusory, likening them to “mere assertions” of undue hardships rather than facts. The statements by the County witnesses, however, offer facts, not conclusory assertions of law. To be sure, the County could have provided more, but given the particular- ized challenges COVID-19 presented in the hospital setting, what the County provided was sufficient to satisfy its burden. See, e.g., Peterson, 150 F.4th at 1219 (firefighters); Hall, 155 F.4th at 753 (employee at eating disorders clinic). On the other side of the ledger, Mason provided no evi- dence that her proposed accommodation (continuing to mask and social distance) would have been a reasonable alternative to vaccination. She does not contest, for instance, that vaccina- tion was more effective than masking or social distancing, or that the mission of Cook County Health was to provide “the safest care possible.” Nor does she deny that she worked in a room with sixty other employees; that she counseled patients directly at least once per month; that she delivered medication to a hospital floor dedicated to treating patients with COVID- 19; or that vaccination provides additional protection from se- vere illness and transmission of COVID-19 as compared to masking. † Of course, our dissenting colleague is correct that † To the extent Mason challenges the district court’s consideration of the impact of an exemption on her coworkers, the court did not err. 10 No. 25-2743 the burden to establish “undue hardship” lies with the County in the first instance. But when gauging the sufficiency of the County’s evidence, it is fair to consider if its factual con- tentions are undisputed as they are here. That said, Mason does challenge the County’s overall con- tention that accommodating her would have caused an undue hardship by pointing to another employee (whom both par- ties refer to as “Sanitarian I”). According to Mason, the County allowed Sanitarian I to keep working even though it knew the individual was unvaccinated. But the comparison is inapt. In October 2021, Sanitarian I replied to the County-wide email about the vaccine policy, explaining she was participat- ing in a blind study on the COVID-19 vaccine and, as a result, she did not know whether she had received a vaccine or a pla- cebo. A Public Health Medical Officer replied, suggesting she ask for an exemption. In June 2022, upon noting internally that the employee had not applied for an exemption, Human Resources emailed the employee telling her to unblind her study participation and ensure compliance with the policy. After a few months of back-and-forth, Sanitarian I notified HR that she had learned she had received the placebo vaccine in the study and promptly obtained the COVID-19 vaccination. Contrary to Mason’s contention, their situations are not analogous, and the County’s treatment of Sanitarian I does not support Mason’s argument that the County would not have faced undue hardship by accommodating her. Unlike Mason, the County did not know that the Sanitarian I Impacts on coworkers that “affect the overall business” may be consid- ered. Kluge, 150 F.4th at 803 (quoting Groff, 600 U.S. at 472). No. 25-2743 11 employee was unvaccinated. Instead, at least one person at the County was aware that the employee had received either the vaccine or a placebo as part of her study participation. More significantly, once Human Resources realized that the employee might not be in compliance with the vaccine policy, the County actively sought to confirm the employee’s vac- cination status, required her to unblind her study participa- tion, and required prompt vaccination once she learned she had received the placebo. Furthermore, Mason has not pointed to any evidence that Sanitarian I worked in-person (as she did) rather than re- motely, or that the employee had frequent interactions with patients and staff (again, as she did). Meanwhile, the County presented evidence that Mason’s position did not allow her to work remotely and required regular close contact with other pharmacists and patients. To the extent Mason believes that the County’s treatment of Sanitarian I undermines its claim of undue hardship, she was required to point to evidence in the record, but she has failed to do so. See Swetlik v. Crawford, 738 F.3d 818, 829 (7th Cir. 2013). B. Disparate Treatment Claim Mason also mounts a conclusory challenge to the district court’s determination that she could not identify an apt com- parator to make out a disparate treatment claim of religious discrimination. She again invokes the example of the Sanitar- ian I employee who was not fired, even though she argues that employee committed the same policy violation. Mason emphasizes that they were similarly situated because both worked in person and were subject to the vaccine policy. 12 No. 25-2743 The district court correctly concluded that the two em- ployees were not comparable. A similarly situated employee must be “directly comparable” to the plaintiff “in all material respects,” meaning they held the same job, committed the same policy violation, did not hold the same religious beliefs, and were treated more favorably. See Patterson v. Ind. Newspa- pers, Inc., 589 F.3d 357, 365–66 (7th Cir. 2009). Typically, the similarly situated employee also must report to the same su- pervisor. Lohmeier, 147 F.4th at 826. But Mason and Sanitarian I had completely different jobs, in different locations, with dif- ferent supervisors. Mason worked as a pharmacist at Stroger Hospital in Chicago for Cook County Health, while Sanitar- ian I worked for the Department of Public Health in Rolling Meadows, Illinois. What’s more, Sanitarian I—unlike Ma- son—neither sought nor was granted an exemption. * * * The judgment of the district court is AFFIRMED. No. 25-2743 13 TAIBLESON, Circuit Judge, dissenting. For more than ten years, Brooke Mason worked as a hospital pharmacist for Cook County Health (“CCH”). She showed up for work through the uncertain early days of the COVID-19 pandemic in 2020 and 2021. She masked, she socially distanced, and she tested. When COVID-19 vaccines became available, Mason declined to receive one, citing her religious beliefs. For that, CCH fired her. CCH reasoned that vaccines were the best method to avoid COVID-19 transmission and declined to grant religious exemptions to any in-person employees—and that was that. Mason sued Cook County under Title VII, and in my opin- ion, her case should proceed to trial. Title VII “does not de- mand mere neutrality with regard to religious practices.” EEOC v. Abercrombie & Fitch Stores, Inc., 575 U.S. 768, 775 (2015). Instead, it “gives them favored treatment,” affirma- tively requiring employers to accommodate their employees’ religious practices. Id. To prevail in this suit, the County must show that accommodating Mason’s request would have been an “undue hardship”—meaning an “excessive” or “unjustifi- able” burden that “would result in substantial increased costs in relation to the conduct of its particular business.” 42 U.S.C. § 2000e(j); Groff v. DeJoy, 600 U.S. 447, 469–70 (2023) (citation omitted). And to prevail at summary judgment, the County had to make that showing so definitively that no reasonable jury could conclude otherwise. The County has not made that showing. Indeed, it hasn’t really even tried. Instead, the County has explained the rea- son why CCH adopted a broad vaccination policy: that public health officials recommended it as the best means of limiting COVID-19 transmission. That’s a start. But when it comes to 14 No. 25-2743 religious practices, Title VII requires employers to make ex- ceptions to their generally applicable policies—even to poli- cies supported by public health guidance—unless doing so would be an undue hardship. The record contains no evi- dence that CCH seriously considered doing so in Mason’s case. Although alternatives to vaccination (like masking, test- ing, socially distancing, and partial remote work) were avail- able, the County has not shown that permitting those alterna- tives for Mason would have been an unjustifiable burden. And it is the County, not Mason, that bears the burden of proof on the undue-hardship question. Summary judgment in the County’s favor is therefore unwarranted. The federal courts have been flooded with Title VII claims related to COVID-19 vaccine policies. This is our first time considering when summary judgment is appropriate on the question of undue hardship in such a case. The issue will come up again, many times over. Title VII and binding Su- preme Court precedent require that we treat undue hardship as a defense to be proven, not an excuse to be presumed, even in a pandemic. In my opinion, the majority does not hold Cook County to that standard, and so I respectfully dissent. I. Background A. Beginning in 2010, Mason worked as a pharmacist at John H. Stroger Jr. Hospital, which is part of CCH. She was respon- sible for checking prescriptions, verifying the drugs given to patients, and calling doctors if there were problems with the prescriptions. Mason worked in a room with approximately twenty other pharmacists and forty pharmacy technicians. Once a month, she was assigned to counsel patients at the No. 25-2743 15 pharmacy window, where she would see approximately eight patients per shift. In March of 2020, the World Health Organization declared COVID-19 a pandemic. The pandemic put a strain on CCH, which was already dealing with staffing shortages. In re- sponse, CCH made personal protective equipment available to all staff, provided masks to anyone who entered its medical facilities, and required staff to wear N95 masks when they were providing some forms of direct patient care. CCH also required Mason and her coworkers to clean their work- stations and practice social distancing. Mason complied with these requirements. She also volunteered to occasionally de- liver medications to a separate floor of the hospital where pa- tients with COVID-19 were treated. During the summer of 2021—about a year and a half into the pandemic—the FDA fully approved certain COVID-19 vaccines. In August, CCH implemented a vaccination policy requiring all staff to either receive the COVID-19 vaccine, or seek an exemption based on a medical need or a sincerely held religious belief, by October 1, 2021. CCH explained that its policy was “based on public health guidance,” citing “the CDC’s recommendation that vaccination was the best way to protect against severe illness, hospitalization and death, and reduce transmission of COVID-19.” By mid-September, CCH also began weekly COVID-19 testing for employees who had not yet been vaccinated, including Mason. Shortly after CCH announced its policy, Mason submitted a request for a religious exemption. She explained that getting the vaccine would run “counter to [her] Christian beliefs,” which included “the requirement to keep [her] body and soul pure.” She cited 1 Corinthians 6:19: “Or do you not know that 16 No. 25-2743 your body is a temple of the Holy Spirit within you, whom you have from God? You are not your own for you were bought with a price. So glorify God in your body.” CCH’s original policy stated that exemption requests like Mason’s would be “considered individually,” evaluating fac- tors like the employee’s “work environment, available venti- lation, frequency[] and duration of direct contact with em- ployees and patients, the number of fully vaccinated Person- nel in the work location, potential alternative shift/work as- signments, and the availability of social distancing.” In Sep- tember of 2021, however, the leadership team at CCH decided that religious exemptions “could only be granted to employ- ees whose duties could be performed on a fully remote basis.” CCH based that determination on the same CDC guidance that informed its decision to require vaccines generally: that vaccination offered the best protection against the virus. While some of Mason’s duties could be performed remotely—such as pre-verification of prescriptions and data entry—CCH concluded that her essential job functions could not be done remotely. It accordingly denied her exemption request. Other employees had the same experience, although the total number of religious exemption requests was rela- tively modest: Approximately 102 of CCH’s nearly 6,000 em- ployees submitted such requests, and CCH granted only nine of them (to fully remote employees). CCH gave Mason 90 days of unpaid leave to search for an- other CCH job compatible with full-time remote work. The record is scant on whether CCH helped with that process; Ma- son recalls being told that finding a remote position was an “unrealistic prospect.” That prediction turned out to be accu- rate, and Mason never found a remote job at CCH. In May of No. 25-2743 17 2022, CCH fired Mason for “[g]ross [i]nsubordination” given her failure to comply with the vaccination policy. Meanwhile, another unvaccinated CCH employee— whom the parties refer to as “Sanitarian I”—was having a very different experience. 1 In October of 2021, Sanitarian I emailed several CCH officials informing them that she had not complied with the vaccination policy because she was part of a double-blind study on the efficacy of a new COVID- 19 vaccine. The next day, a CCH senior public health official suggested that Sanitarian I “pass on this information to em- ployee health and ask for an exemption.” That official also said she thought that Sanitarian I “need[ed] to take a weekly COVID test” as it was unclear whether she had received the trial vaccine or a placebo, and the trial vaccine had not yet been approved by the FDA. More than nine months later, in July of 2022, CCH official Anitha Nimmagadda followed up with Sanitarian I. Nim- magadda was the Medical Director of Employee Health Ser- vices at CCH and was listed as a “Policy Lead” for its vaccina- tion policy. In an email, Nimmagadda reminded Sanitarian I that she still had not complied with CCH’s policy because she had never provided proof of vaccination. Sanitarian I re- sponded a few weeks later that she had asked for the study to be unblinded and would receive those results in August. Nim- magadda reached out again on September 27, requesting once more a copy of Sanitarian I’s unblinded study results. On 1 A sanitarian primarily “conduct[s] health and sanitation inspec- tions” of businesses to ensure compliance with public health regulations. McDonald v. Vill. of Palatine, Ill., 524 F. App’x 286, 288 (7th Cir. 2013); see also 225 ILL. COMP. STAT. 37/21 (discussing sanitarian licensing require- ments). 18 No. 25-2743 October 12, Sanitarian I finally informed Nimmagadda that the study had been unblinded, that she had been part of the placebo group, and that she had received her first dose of the vaccine the previous day. Although she did not comply with CCH’s vaccination policy for more than a year, nothing in the record suggests that Sanitarian I was ever disciplined. B. After her termination, Mason sued Cook County under Ti- tle VII of the Civil Rights Act of 1964. She alleged that CCH had failed to accommodate her religious practices and dis- criminated against her based on her religion. See 42 U.S.C. § 2000e-2(a). The parties engaged in discovery, during which Mason was deposed and answered interrogatories. She also obtained CCH email correspondence about Sanitarian I. The County, for its part, produced sworn affidavits from CCH of- ficials. The County’s affidavits are particularly relevant here. They came from three CCH officials: (1) the Associate Chief Human Resources Officer, (2) the Department Chair of Infec- tion Control and Epidemiology, and (3) the former Equal Em- ployment Opportunity Director. The affidavits are brief, total- ing fifteen pages all together, and at times repetitive; several paragraphs are copied and pasted almost verbatim into more than one affidavit. They describe basic facts about CCH, its response to the COVID-19 pandemic, and its vaccination pol- icy. They also describe CCH’s decision to deny all religious exemption requests for in-person employees and to grant those employees 90 days of unpaid leave to find a remote po- sition. No. 25-2743 19 Like the policy itself, the affidavits recite public health guidance that vaccination afforded the best protection against COVID-19. Beyond that, the explanation for why alternatives to vaccination were unacceptable for Mason consists entirely of the following statements: • “CCH determined that other mitigation methods, such as masking, social distancing, and regular COVID-19 testing did not sufficiently address the patient and em- ployee safety risk across its facilities.” R.58-12, ¶ 25 (Pramuk-Volk Affidavit); • “While mitigations such as masking and testing are im- portant tools to prevent the spread of the SARS-Co-V 2 virus, vaccination afforded employees additional pro- tection from severe illness and death due to COVID-19. In 2021, unvaccinated persons were found to be more likely than a fully vaccinated person[] to experience se- rious illness or death from COVID-19.” R.58-13, ¶ 17 (Welbel Affidavit); • “Brooke Mason’s position as a Pharmacist at Stroger Hospital required her to work at the hospital, in per- son, be in regular contact with patients and coworkers, and it was not always possible for her to socially dis- tance.” R.58-14, ¶ 15 (Krasucki Affidavit); Pramuk- Volk Affidavit, ¶ 29 (same with slight wording differ- ences). On that record, the County moved for summary judg- ment. The district court granted the County’s motion. The dis- trict judge found that the County had proven, as a matter of law, that accommodating Mason would have been an undue hardship. The judge also concluded that Mason’s disparate- 20 No. 25-2743 treatment theory failed because she was not legitimately com- parable to Sanitarian I and therefore had insufficient evidence to prove that CCH had discriminated against her based on her religion. Mason appealed. II. Discussion Title VII of the Civil Rights Act of 1964 makes it an “un- lawful employment practice” for an employer “to fail or re- fuse to hire or to discharge any individual, or otherwise to discriminate against any individual with respect to his com- pensation, terms, conditions, or privileges of employment, be- cause of such individual’s … religion.” 42 U.S.C. § 2000e- 2(a)(1). The statute defines “religion” to “include[] all aspects of religious observance and practice, as well as belief, unless an employer demonstrates that he is unable to reasonably ac- commodate to an employee’s or prospective employee’s reli- gious observance or practice without undue hardship on the conduct of the employer’s business.” Id. § 2000e(j). Title VII thus “prohibits employers from discriminating against employees and job applicants based on their religion,” Adeyeye v. Heartland Sweeteners, LLC, 721 F.3d 444, 448 (7th Cir. 2013), just as it prohibits discrimination based on characteris- tics like “race” and “sex,” 42 U.S.C. § 2000e-2(a)(1). And in its definition of “religion,” Title VII imposes the additional re- quirement that employers affirmatively “accommodate the religious practice of their employees unless doing so would impose an ‘undue hardship on the conduct of the employer’s business.’” Groff, 600 U.S. at 453–54 (citation omitted); see Trans World Airlines, Inc. v. Hardison, 432 U.S. 63, 74 (1977). In this case, Mason alleges that CCH violated Title VII in both ways: by failing to accommodate her religious practice, No. 25-2743 21 and by disparate treatment of religious employees. Like Ma- son and the majority, I focus on her failure-to-accommodate theory, although her disparate-treatment theory requires a brief discussion as well. A. Failure to Accommodate Religious accommodation cases follow a burden-shifting framework. See Kluge v. Brownsburg Cmty. Sch. Corp., 150 F.4th 792, 802 (7th Cir. 2025). Mason must first establish a prima facie case by showing that: (1) her beliefs are sincerely held, are re- ligious in nature, and conflicted with CCH’s requirements; (2) she notified CCH of her religious beliefs; and (3) the need for a religious accommodation was a motivating factor for her termination. See id. If Mason makes out a prima facie case, the burden shifts to the County “to show that any reasonable ac- commodation would result in undue hardship.” Id. at 802–03. The majority, like the district court, assumes that Mason has made out a prima facie case. See Maj. Op. at 5. That assump- tion is correct. Indeed, the parties dispute only whether Ma- son’s request was based on a sincerely held religious belief. On this point, Mason carries a “low burden,” requiring her to show only that “(1) ‘the belief for which protection is sought [is] religious in [the] person’s own scheme of things’ and (2) that it is ‘sincerely held.’” Kluge, 150 F.4th at 811 (alterations in original) (citation omitted). We have previously concluded that an exemption request nearly identical to Mason’s met that standard on its face. See Passarella v. Aspirus, Inc., 108 F.4th 1005, 1009–10 (7th Cir. 2024). Here, nothing in the record re- buts that conclusion as a matter of law, so Mason has made out a prima facie case that survives summary judgment. See Bube v. Aspirus Hosp., Inc., 108 F.4th 1017, 1020 (7th Cir. 2024) 22 No. 25-2743 (“courts should avoid putting themselves in the impossible position of trying to define religious legitimacy”). The real dispute in this case concerns undue hardship, an issue on which the County bears the burden of proof. An “un- due hardship” is a “burden” that “rise[s] to an ‘excessive’ or ‘unjustifiable’ level.” Groff, 600 U.S. at 469 (citation omitted). To prevail on this point, the County must prove that accom- modating Mason through precautions other than vaccination “would result in substantial increased costs in relation to the conduct of its particular business.” Id. at 470. And at the sum- mary judgment stage, the County had to “demonstrate why the record is so one-sided as to rule out the prospect of a find- ing in favor of” Mason on this question. Hotel 71 Mezz Lender LLC v. Nat’l Ret. Fund, 778 F.3d 593, 601 (7th Cir. 2015) (ex- plaining standard “[w]here, as here, the movant is seeking summary judgment on a claim as to which it bears the burden of proof”). In my view, the County has not made that show- ing. As the majority recounts, the County’s undue-hardship evidence focused on the legitimate difficulties of running a health-care system during the COVID-19 pandemic. Health- care workers were at greater risk than the general public of contracting COVID-19, and CCH was dealing with staffing shortages. Once vaccines became available, CCH followed public health guidance indicating that vaccination was the best way to control the virus. While CCH had already estab- lished other mitigation strategies (like masking, social dis- tancing, and testing), it resolved to adopt the most effective measure available. With that evidence, the County is off to a good start in ex- plaining why CCH adopted a vaccination mandate in the first No. 25-2743 23 place. Indeed, Mason does not dispute many of these points— including that CCH reasonably understood the vaccine to provide the best protection against COVID-19. But in a reli- gious accommodation case, Title VII requires more than a sen- sible explanation for the employer’s policy. It also requires the employer to grant exceptions to that policy for specific employ- ees’ religious practices, even if those exceptions are burden- some, as long as the burden does not “rise to an ‘excessive’ or ‘unjustifiable’ level.” Groff, 600 U.S. at 469 (citation omitted); see also Kluge, 150 F.4th at 807. In Groff v. DeJoy, for example, the Postal Service reasona- bly determined that requiring all its drivers to deliver pack- ages on Sundays was optimal, given its contractual obligation to Amazon to make Sunday deliveries. 600 U.S. at 454. When faced with an employee whose religion precluded working on Sundays, however, the Postal Service had to do much more than justify its policy as the best one for its business. It had to “reasonably accommodate [its] employee’s practice of reli- gion” by granting an exception to its optimal policy, or other- wise demonstrate that any such accommodation would be an undue hardship. Id. at 473. It “would not be enough,” for ex- ample, for the Postal Service to simply “conclude that forcing other employees to work overtime would c