Mealey's (August 26, 2021, 1:19 PM EDT) -- SANTA ANA, Calif. — A University of California (UC) professor who says he already had COVID-19 and is “naturally immune” filed for a preliminary injunction on Aug. 23 in a California federal court seeking to prohibit the university from enforcing its vaccine mandate for in-person teaching and learning as to those who already had the virus....