Dr. Fauci says Pfizer's reported 90% vaccine efficacy rate is 'extraordinary' ayoub 16:14 Yahoo News - Latest News & Headlines ayoub On Monday, Pfizer said its experimental coronavirus vaccine was found to be more than 90% effective in its final stage of clinical trials. Author : ayoub Share this Related Posts
On Monday, Pfizer said its experimental coronavirus vaccine was found to be more than 90% effective in its final stage of clinical trials.