SCIENCE: Coronavirus Infections May Not Be Uncommon, Tests Suggest. “Two new studies using antibody tests to assess how many people have been infected with the coronavirus have turned up numbers higher than some experts had expected. Both studies were performed in California: one among residents of Santa Clara County, south of San Francisco, and the other among residents of Los Angeles County. In both cases, the estimates of the number of people infected in those counties were far higher than the number of confirmed cases.”

I hope this is true, and it’s consistent with some findings from Boston, but since I hope it’s true I’m going to withhold judgment until there’s more data.