Rapid antigen tests are now the standard way for people to determine if they have COVID-19, but studies show they are less sensitive than laboratory tests and can result in a false negative for infection, creating public confusion about about how to use rapid tests.

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Bara Vaida (@barav) is AHCJ's core topic leader on infectious diseases. An independent journalist, she has written extensively about health policy and infectious diseases. Her work has appeared in the National Journal, Agence France-Presse, Bloomberg News, McClatchy News Service, MSNBC, NPR, Politico, The Washington Post and other outlets.