Why aren't #COVID19 experts discussing/informing us on this? Seems to explain why Italy/UK/Spain/France/NY/NJ/MI had exponential spread despite full lockdowns by mid-March, but WA/CA didn't. Maybe this strain made it to FL/AZ/CA/NC/SC? $spx ⤵️  #WisthenewV https://t.co/gaobNgFtOZ