Pfizer is sued by Texas over COVID vaccine claims
Pfizer is sued by Texas over COVID vaccine claims

Pfizer is sued by Texas over COVID vaccine claims

This all revolves around conservatives focusing on ARR instead of RRR numbers on vaccine efficacy. Here's a description I found of the difference from another article:
Let’s say a study enrolled 20,000 patients into the control group and 20,000 in the vaccine group. In that study, 200 people in the control group got sick and 0 people in the vaccine group got sick. Even though the vaccine efficacy would be a whopping 100%, the ARR would show that vaccines reduce the absolute risk by just 1% (200/20,000= 1%). For the ARR to increase to 20% in our example study with a vaccine with 100% efficacy, 4,000 of the 20,000 people in the control group would have to get sick (4,000/20,000= 20%).