MacDonald v. OHSU — Ninth Circuit upheld rejection of nurse’s COVID-19 vaccine-exemption claims

Case
Brittany K. MacDonald v. Oregon Health and Science University, et al.
Court
U.S. Court of Appeals for the Ninth Circuit
Judge
Michael Daly Hawkins (Bill Clinton, 1994); Eric C. Tung (Donald Trump, 2025); Kiyo A. Matsumoto (appointment info not available)
Date Decided
October 2, 2026
Docket No.
24-4852
Topics
Free Exercise; Qualified Immunity; Title VII; Religious Accommodation
Source
Read the full opinion

Background

Brittany K. MacDonald worked as a registered nurse in Oregon Health and Science University’s Mother Baby Unit, where she provided hands-on care to pregnant patients, newborns, cancer patients, and other immunocompromised patients. After Oregon required healthcare workers to receive a COVID-19 vaccine in 2021, OHSU permitted employees to request medical or religious exemptions.

MacDonald, a practicing Christian opposed to abortion, sought a religious exemption based on concerns about fetal-cell lines and her beliefs concerning bodily sanctity and divine guidance. OHSU denied the request, and MacDonald was terminated after remaining unvaccinated. She sued individual OHSU officials under 42 U.S.C. § 1983 for violating the Free Exercise Clause and sued OHSU under Title VII for failing to accommodate her religious beliefs. The district court dismissed the constitutional claim on qualified-immunity grounds and later granted OHSU summary judgment on the Title VII claim.

The Court’s Holding

The Ninth Circuit affirmed the dismissal of the Free Exercise claim. Without deciding whether the officials’ conduct violated the Constitution, the majority held that no clearly established law in 2021 gave the officials fair notice that denying a religious vaccine exemption to a healthcare worker serving vulnerable patients during the COVID-19 pandemic violated the Free Exercise Clause. The cited precedents did not address sufficiently similar government action and circumstances.

The court also affirmed summary judgment for OHSU on the Title VII failure-to-accommodate claim. OHSU’s undisputed evidence showed that allowing MacDonald to work unvaccinated would have created substantial health-and-safety risks and operational and financial costs, satisfying the undue-hardship standard. The court further held that precedent does not import a pretext inquiry into Title VII’s undue-hardship analysis and that, even if it did, MacDonald had not produced evidence creating a triable issue that OHSU’s stated hardships were pretextual. Judge Tung dissented from the qualified-immunity ruling, reasoning that OHSU officials had impermissibly targeted MacDonald’s religious belief by categorically treating it as nonreligious, but agreed that the Title VII ruling should be affirmed.

Key Takeaways

  • The majority resolved the Free Exercise claim solely on qualified immunity and did not decide whether OHSU officials actually violated the Constitution.
  • Health-and-safety risks, operational burdens, and financial costs may collectively establish undue hardship under Title VII when supported by evidence specific to the employer and proposed accommodation.
  • The court found no authority making alleged discriminatory motive or pretext part of the undue-hardship analysis for a Title VII failure-to-accommodate claim.

Why It Matters

The decision applies qualified immunity narrowly to the legal landscape officials faced in 2021, emphasizing the absence of then-existing precedent involving religious exemptions from a healthcare-worker vaccine mandate during a pandemic. The dissent, however, framed the case as an application of established prohibitions against government hostility toward particular religious beliefs.

For employers defending religious-accommodation claims, the opinion underscores the importance of concrete, job-specific evidence showing how a proposed accommodation would impose substantial health, safety, operational, or financial costs.

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