There are three different ways to test for COVID-19: PCR tests, antigen tests and antibody tests. Each method is best for a different stage of COVID-19 infection. Used in sequence, all three methods ...
Ducharme is a contributor to TIME. Ducharme is a contributor to TIME. If you had COVID-19 symptoms in 2020, you probably would have masked up and braved a visit to a laboratory, doctor’s office, or ...
Viruses that cause measles and the common cold do not produce false-positive COVID-19 reverse transcriptase polymerase chain reaction (RT-PCR) tests, contrary to posts circulating widely online. A ...
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