Pfizer begins human trials on coronavirus vaccine Posted on May 6, 2020 by RajanPfizer begins human trials on coronavirus vaccineFox News medical contributor Dr. Nicole Saphier weighs in.Related Posts:CDC Director Walensky signs off on Pfizer vaccine…CDC Director Walensky signs off on Pfizer vaccine…Pfizer COVID-19 pill could cut severe illness by…Pfizer COVID-19 pill could cut severe illness by…Pfizer COVID-19 pill could cut severe illness by…Pfizer COVID-19 pill could cut severe illness by…Pfizer COVID-19 pill could cut severe illness by…Pfizer COVID-19 pill could cut severe illness by…Pfizer COVID-19 pill could cut severe illness by…Pfizer COVID-19 pill could cut severe illness by…Post navigation← PreviousNext →