March 11, 2021

Pfizer/BioNTech Say Data Suggests Vaccine 94% Effective In Preventing Asymptomatic Infection-Reuters

Pfizer Inc and BioNTech SE said on Wednesday that real-world data from Israel suggests their COVID-19 vaccine is 94% effective in preventing asymptomatic infections, meaning it could significantly reduce transmission. The companies also said the latest analysis of the Israeli data shows the vaccine was 97% effective in preventing symptomatic disease, severe disease and death. That is basically in line with the 95% efficacy Pfizer and BioNTech reported from the vaccine’s late-stage clinical trial in December. Reuters, 03/11/2021