Are You Infectious If You Have A Positive PCR Test Result For COVID-19? by Tom Jefferson, Carl Heneghan, Elizabeth Spencer, and Jon Brassey

PCR detection of viruses is helpful so long as its accuracy can be understood: it offers the capacity to detect RNA in minute quantities, but whether that RNA represents infectious virus may not be clear. During our Open Evidence Review of oral-fecal transmission of Covid-19, we noticed how few studies had attempted or reported culturing live SARS-CoV-2 virus from human samples.
https://www.cebm.net/covid-19/infectious-positive-pcr-test-result-covid-19

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