How to do an at-home COVID-19 rapid antigen test correctly
https://health.ucdavis.edu/news/headlines/how-to-do-an-at-home-covid-19-rapid-antigen-test-correctly/2022/02
WEBFeb 7, 2022 · Each contains three main items: a collection swab, a test strip and a small vial of liquid. Place them all on a clean surface. Open the collection swab and insert it into each nostril, rotating five times against the inner wall. You should insert the swab ½ to ¾ of an inch into the nostrils.
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