Covid-19 live updates: California professor loses case arguing natural immunity negates vaccine mandate

A professor at the University of California at Irvine School of Medicine has lost a legal battle in which he argued that he did not have to comply with a vaccine mandate due to having natural immunity and a high level of coronavirus antibodies following an infection. District Judge James Selna in Santa Ana, Calif., dismissed the teacher’s argument and found in favor of the university, in a ruling that appears to be the first of its kind on the matter and represents an issue that may crop up elsewhere in the country amid vaccine mandates.