Was COVID spreading in our communities a lot earlier than we thought?
It somehow seems unlikely that it was pretty lively in Wuhan by mid December without a fair amount tracked backed to the rest of the world soon after.
Then on
Ditto France/Spain/U.K./US/Germany.
It would be very very instructive.
Also ? Prevalence? Immunity? Fatality?
Before Xmas. When the cases in Wuhan were beginning to cause serious concern in their medical community.