Partisans Seize on Edited Clip of CDC Director’s Comments on COVID-19 Vaccine Effectiveness

All of the authorized and approved vaccines are effective at preventing symptomatic disease.

The Pfizer/BioNTech vaccine, which is the first COVID-19 vaccine to receive full approval from the Food and Drug Administration, showed a final efficacy of 91% against symptomatic illness in its phase 3 trial, meaning that under the conditions of the trial the vaccine reduced the risk of getting sick by 91%. The Moderna vaccine showed similar results in its clinical trial, with an efficacy of 94% against disease at the time of emergency use authorization.

Johnson & Johnson, which partly tested its vaccine in South Africa when the emerged, an efficacy of 66% in preventing moderate to severe COVID-19 and an efficacy of