What does it mean

Intro Currently in the US, there are three popular vaccines- the Moderna version, the Johnson and Johnson version and also the Pfizer version. One of the main differences between them is the number of shots needed. Both the Moderna and Pfizer vaccine require two shots while the Johnson and Johnson Read more…

When talking about the Moderna or Pfizer vaccine, you will often hear that it is “94% effective.” But what exactly does that mean? This article is going to explain the inner workings of the study conditions and how researchers came up with the 94% number. Study conditions The first thing Read more…