Pfizer and BioNTech conclude Phase 3 study of Covid-19 Vaccine candidate, meeting all primary efficacy endpoints
Primary efficacy analysis demonstrates BNT162b2 to be 95% effective against COVID-19 beginning 28 days after the first dose;170 confirmed cases of COVID-19 were evaluated, with 162 observed in the placebo group versus 8 in the vaccine group Efficacy was consistent across age, gender, race and ethnicity demographics; observed efficacy in adults over 65 years of