What Does a 95% Effective COVID-19 Vaccine Mean?
Hopefully you’ve heard the exciting news by now: Last week, both Moderna and Pfizer and BioNTech announced that their COVID-19 vaccines are about 95% effective! This is groundbreaking news that had changed the way that many physicians and public health professionals – including myself – think about these vaccines. But, you may be wondering what does “95% effective” really mean, both for the vaccines themselves and the pandemic? Read on for an explanation.