Pfizer’s Covid-19 Vaccine Proves 90% Effective in Latest Trials

Detail of coronavirus test sample

A vaccine developed by Pfizer Inc. and partner proved better than expected at protecting people from Covid-19 in a pivotal study, a milestone in the hunt for shots that can stop the global pandemic. The vaccine proved to be more than 90% effective in the first 94 subjects who were infected by the new coronavirus… Continue reading Pfizer’s Covid-19 Vaccine Proves 90% Effective in Latest Trials