China is testing an entire city of 9 million for COVID-19 after it found 12 cases connected to a hospital there science science / science 3 years ago 546 Views comments A small cluster of cases — six with symptoms and six without — prompted an enormous response from officials in the city of Qingdao. Read more
A small cluster of cases — six with symptoms and six without — prompted an enormous response from officials in the city of Qingdao.
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