Pfizer, Moderna vaccines reduce COVID-19 infection risk by 90% after second dose: U.S. study - Reuters

8:07am PDT - March 29th, 2021    covid-19 prevention - Reuters

The COVID-19 vaccines developed by Pfizer Inc with BioNTech SE and Moderna Inc are highly effective and reduced the risk of infection by 90% by two weeks after the second shot among healthcare personnel and first responders, according to a the U.S. study rele…