Five takeaways on the science behind CDC’s latest mask guidance
We knew Delta was spreading quick. In america and all over the world, it swiftly overtook one other variant, Alpha, ...
Tag: CDCs
What’s the science behind CDC’s decision to say fully vaccinated people don’t need masks?
CNN Movies' "Race for the Vaccine," produced and narrated by Chief Medical Correspondent Dr. Sanjay Gupta, traces the world-changing discoveries ...