How can it still be spreading like that if people are staying indoors away from each other? I read that grocery stores even limit the number of people shopping at one time. Is it spreading though essential-type workers?
There's a period of days between exposure and symptomatic infection. The social distancing started ~a week ago Friday (and ramped up over the next several days).
We are only beginning to see the impact from that, and it will be quite a few more days until we see the full impact (and with some states taking longer to put the measures in place, even longer).
The typical latency between being infected and testing positive is quite long, I’d guess around two weeks. The new cases being reported now are from before the shutdown measures started in earnest.
