13) Also, the CDC is still also assuming basic cloth masks in this risk models — the CDC needs to start promoting PREMIUM MASKS ASAP!!! @kprather88 @AbraarKaran @RanuDhillon and I have been pushing this for months to no avail! CDC rejected pushes for premium mask recommendations! https://t.co/UIuhHf9J1o

— Eric Feigl-Ding (@DrEricDing) July 30, 2021