COVID-19 rapid testing and screening in
2021-7-10 · A rapid antigen test looks for a COVID-19 antigen. It can be detected by swabbing the nasopharynx (back of the nose), anterior nares (front of the nose), or oropharyngeal (back of the throat). The test is done over about 10-30 seconds, depending on the method collected. It takes about 5-15 minutes to read. This test …
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