PCR is a test that detects viral antigens v by culturing the virus To detect SARS-CoV-2, which is a(n) RNA V virus, a fo

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Pcr Is A Test That Detects Viral Antigens V By Culturing The Virus To Detect Sars Cov 2 Which Is A N Rna V Virus A Fo 1 (38.29 KiB) Viewed 73 times

PCR is a test that detects viral antigens v by culturing the virus To detect SARS-CoV-2, which is a(n) RNA V virus, a form of PCR called RT-PCR is used. In this test, the enzyme reverse transcriptase first converts RNA to a dsDNA copy which is then amplified by the PCR reaction. A positive test can determine the presence of viable ("live" or infectious) virus, so a person testing positive may not actually be contagious. False negatives are most likely early or late in an infection, when viral RNA is in small amounts.