Testing Individuals for Coronavirus Disease 2019 (COVID-19). A contribution for patients in JAMA
Coronavirus disease 2019 (COVID-19) infection can be diagnosed using a test called polymerase chain reaction (PCR). What Is the PCR Test for COVID-19 Infection? Samples are taken from places likely to have the virus that causes COVID-19, like the back of the nose or mouth or deep inside the lungs. After a sample is collected,