Tide turns | Masking Kids in School | Rates of Adverse Events Post Vax in ppl with Nat Immunity Posted by covid 19 updates January 30, 2022 ShareVinay Prasad MD MPH Vinay Prasad, MD MPH; Physician & Associate Professor. https://vinayprasadmdmph.substack.com… covid 19 updates January 30, 2022