Faced with mandatory Covid vaccination, students and employees have appealed to religion as grounds for exemption. This latest conscience war within our culture wars presents a minefield of legal and philosophical complexities for states and health care systems.

Should religion play a role in a doctor's care of seriously ill patients? The author, a hematologist/oncologist who teaches Jewish medical ethics, writes: "A physician's outlook may be shaped by religious standards without having to impose it on the patient."