PRC vs. Antigen Test: What kind of COVID-19 test is best?

Dr. Joseph Chang, the chief medical officer for Parkland Hospital, joined Good Day to talk about the different types of COVID-19 tests. He explains when it's best to take a 15-minute rapid test and when it's best to get a PCR test that takes a day or longer for results. He also offers advice on the best time to take a COVID-19 test.

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