Highly contagious COVID19 variant has spread to all 50 US states, alarming experts about new wave

[stopdiggin]

4. correct

South African variant designated B.1.351, Brazilian P.1
And studies with current vaccines are modestly optimistic about effectiveness with the newer variants. i.e. good overall effectiveness (although perhaps a small percentage less) against infection, and even greater effectiveness in preventing serious disease outcome. (caveat: J&J perhaps not quite so good on first measure?) Length/period of protection offered by antibodies (both natural and vaccine induced) is still largely undetermined (and will probably end up being expressed as some sort of 'range' of protection/effectiveness).

Superlative work so far -- but this thing is going to be keeping the community on their toes for a while.