The Chinese city of Wuhan, where the coronavirus was first detected late last year, has tested nearly 10 million people in an unprecedented 19-day campaign to check an entire city. It identified just 300 positive cases, all of whom had no symptoms. The city found no infections among 1,174 close contacts of the people who tested positive, suggesting they were not spreading it easily to others. That is a potentially encouraging development because of widespread concern that infected people without symptoms could be silent spreaders of the disease.
Posted at 5:13 AM, Jun 03, 2020
and last updated 2020-06-03 21:22:55-04
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