What experts say about the best way to use at-home COVID-19 testing kits
tests for COVID-19 remain an urgent priority
What’s the difference between at-home tests and the tests that a hospital, doctor’s office or lab perform?by the U.S. Food and Drug Administration are antigen tests, which means they can pick up things that the virus makes or shed, like proteins, but not the virus’s actual genetic material. So a positive antigen test picks up signs that the SARS-CoV-2 virus was or is present, similar to hairs that people or pets shed as a trail of where they’ve been.
, without a prescription, including ones made by Abbott, Becton Dickinson, Ellume, OraSure and Quidel. Generally the kits contain two tests, so people can repeat the test a day or two apart to verify the results. The FDA also just authorized aThese kits, sold at pharmacies and other retailers like Walmart and grocery stores, can be broken down into two groups: at-home collection kits, and at-home testing kits.
He doesn’t support more frequent, routine testing of people without symptoms because as more people perform more tests, the small chance of false positives only increases. That’s especially true in areas where there is relatively high vaccination coverage and low prevalence of disease. “Doing regular antigen testing among people without symptoms in a low [COVID-19] prevalence setting is really just asking for false positives,” he says.
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