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Saliva test detects Covid-19 faster than nasopharyngeal fluid test
Medical staff take samples for Covid-19 testing for people in Changchun, Jilin province, China, March 21, 2022. (Photo: THX) A…
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Medical staff take samples for Covid-19 testing for people in Changchun, Jilin province, China, March 21, 2022. (Photo: THX) A…
Read More »