Have I had it already? The question lots of people are asking themselves, especially after recent autopsies and other work point to several weeks of previously undetected cryptic transmission in US cities.
Seems to bear out this tweet from two months ago (Feb 29):
This strongly suggests that there has been cryptic transmission in Washington State for the past 6 weeks. 3/9
— Trevor Bedford (@trvrb) March 1, 2020