
Pfizer and BioNTech declares their COVID-19 vaccine is over 90% effective
US-based pharma company Pfizer Inc and German Biotech company BioNTech announced that their mRNA-based COVID vaccine candidate, BNT162b2, has demonstrated evidence of efficacy against COVID-19 in patients. The first interim efficacy analysis conducted on November 8, 2020, by an external, independent Data Monitoring Committee (DMC), stated this from the Phase 3 clinical trial. Pfizer said