Pfizer and BioNTech have upgraded their release from last week to say that their vaccine has since proven to be 95% effective against COVID-19 after an initial 90% positive rate. They have released updated results from their final-stage clinical trial with more detailed information. The findings are based on 170 cases of COVID-19, with 162 … Continue reading Final Trial Pfizer Vaccine Proves To Be 95% Effective Against Covid