https://apnews.com/4fe413019f0ee0abcfa3a1d9a172d97f

BEIJING (AP) — The phone call comes in the early afternoon, six hours or so after the mandatory morning test. The number is immediately recognizable because it's so strange: a U.S. dialing code when the Chinese health official on the line is, in fact, calling from Beijing and bearing bad news.

“Sorry to bother,” he says.