Pfizer’s Experimental COVID-19 Vaccine 90 Percent Effective?
The German biotech firm BioNTech SE issued a joint press release with its American partner Pfizer, Inc. on Nov. 9, 2020 to announce that interim analysis of a global Phase 3 study of their mRNA-based SARS-CoV-2 vaccine appeared to demonstrate an efficacy rate “above 90%”measured seven days after the second dose.1 “This is really a […]