Bloomberg reported (April 2) that Jia county, Henan province, whose population numbers around 640,000, issued a directive on April 1, asking all residential compounds to be sealed off and those visiting and leaving homes to produce identity cards, wear masks and submit to temperature checks. Car traffic will also be limited. The move came after residents were unnerved by an incident in which a woman was infected after she visited a doctor who carried the virus but showed no signs of being sick. “Testing conducted by a Jia county [Henan] hospital on March 25 of medical workers who treat Covid-19 patients revealed infections in three doctors who showed no symptoms. The three doctors’ infections came to light only when a 59-year-old woman who developed a fever and a headache in a nearby city was found to have contracted the virus on March 28, after visiting one of the doctors.”