Stock markets in Asia and Europe fell for the seventh consecutive day, after the S&P 500 had its worst single-day decline in nearly a decade. The benchmark index, at a record high just last Wednesday, has slid more than 10 percent since then.

Related: Federal workers met quarantined Americans in California without proper medical training or protective gear, then returned to the general population, a government whistle-blower said.

Another angle: In naming Vice President Mike Pence to lead the U.S. response, President Trump praised the “great health care” in Indiana while Mr. Pence was governor. We looked at his record, whose major accomplishments were initiatives that Republicans have opposed.

How to prepare: Wash your hands, and move away from people who are coughing or sneezing. Here’s more advice. The Times is also starting an email newsletter with the latest coronavirus developments. Sign up here.