The dispute erupted on July 31 when Uthmeier, a Catholic himself, sent an open letter to the state's bishops claiming that Catholic schools' refusal to accept religious exemptions was a violation of state law. Florida law requires both public and private schools to allow exemptions from school vaccination mandates on religious grounds. However, the state's Catholic dioceses have long held that vaccination is a moral good and that no theological argument justifies refusing it. Their schools therefore accept only medical exemptions verified by a healthcare provider.
In his letter, Uthmeier argued that, based on his personal reading of Catholic teaching, there was "no legitimate religious reason to refuse granting religious exemptions." He specifically cited select theological positions concerning vaccines developed using fetal cell lines—sometimes referred to as "abortion-derived vaccines"—and suggested that refusing to grant exemptions was "morally reprehensible." He then threatened to withhold state funding from Catholic schools if they did not comply.
The bishops' response was swift and unequivocal. They rejected Uthmeier's interpretation of Catholic doctrine, noting that the Vatican's Pontifical Academy for Life and the U.S. Conference of Catholic Bishops have both affirmed that vaccination is permissible and encouraged, even when vaccines have some connection to fetal cell lines. The bishops accused Uthmeier of overstepping his authority and attempting to impose his personal theological views on the church. They made clear that they would not alter their policies to accommodate what they see as a political rather than a religious demand.
The standoff highlights a growing tension between religious freedom arguments and public health mandates in Florida. While the state's Republican leadership has championed vaccine exemptions as a matter of religious liberty, the Catholic Church—the state's largest religious denomination—is effectively arguing that the state's policy is being used to undermine genuine religious teaching. Legal experts say the case could test the limits of a state's ability to compel religious institutions to adopt practices that contradict their own doctrines, even when those doctrines are not universally shared by members of the faith.