A choir practice that took place in Washington three weeks ago turned out to be a super-spreading event in which 45 out of 60 people became infected with the coronavirus, even though no one was showing symptoms and no one touched each other.

We don't have demographic information, like ages, on the 223 confirmed COVID-19 in San Francisco, but a surge in cases appears to be happening here and in Alameda County where up until the last few days the daily counts were only modestly rising.

Don't get any ideas about throwing speakeasy-style parties during San Francisco's shelter-in-place order, party people! San Francisco City Attorney Dennis Herrera is making an example of one such party scheduled for Friday.