How is polymerase chain reaction used as a diagnostic test for COVID-19? PCR serves as a molecular test to detect the SARS-CoV-2 virus's genetic material. PCR serves as an antigen test that detect...

Extracted text: How is polymerase chain reaction used as a diagnostic test for COVID-19? PCR serves as a molecular test to detect the SARS-CoV-2 virus's genetic material. PCR serves as an antigen test that detect specific proteins from the virus PCR is used to kill the SARS-CoV-2 virus in a patient's sample. PCR is used to quantify specific proteins in the SARS-CoV-2 virus.