The boy is tested for covid-19 before class.

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Photo credit: © Radek Svehla / Alamy / Afripics
License: Royalty Free
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Keywords: antibodies, antigen, boy, care, child, close, corona, coronavirus, covid, education, express, fast, flu, health, immunity, laboratory, man, medicine, negative, pandemic, quarantine, research, result, school, schoolboy, test, virus