4 pieces of misinformation that it seems OK to keep repeating
Here are 4 pieces of misinformation that it seems OK to keep repeating
1. The Bangladesh RCT showed cloth masks are better than no mask.
Wrong. The primary endpoint of the Bangladesh RCT was having symptoms that prompted a blood test, which assessed whether a person had COVID19. The fact is that cloth masks had no statistically significant improvement over no intervention. The study showed surgical masks were better than nothing in rural Bangladesh, but cloth masks failed. A secondary endpoint of reporting symptoms without knowing the cause was improved, but there are 3 problems with this endpoint. First, it is not the primary endpoint. Second, this endpoint is bias susceptible. Wearing a mask may make you report symptoms differently. And third, more to point, most of these people with symptoms actually did not have COVID19 when they were tested, which was kinda the point.