RT @ScottGottliebMD: There’s data suggesting the interval between initial ability to detect Covid by PCR and later by antigen test has leng… 0 atbildes
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KM (2021-12-21 15:32:30) |
RT @ScottGottliebMD: There’s data suggesting the interval between initial ability to detect Covid by PCR and later by antigen test has leng… | |