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Abbott Laboratories BinaxNOW, an at-home-rapid-COVID test, two-pack cost $23.99. (Hannah Norman/Kaiser Health News/TNS)
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Abbott Laboratories BinaxNOW, an at-home-rapid-COVID test, two-pack cost $23.99. (Hannah Norman/Kaiser Health News/TNS)
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(TNS) – With COVID-19 cases surging across the San Francisco Bay Area, many people are using at-home antigen tests, especially as they become more widely available from employers, schools and more. Antigen tests aren’t as reliable as PCR tests, but they’re likely to catch anyone who’s at their most contagious.
One thing many people using at-home COVID-19 antigen tests are getting wrong is the timing, said Dr. William Schaffner, a professor in the division of infectious diseases at Vanderbilt University. Schaffner explained that he has noticed people are often testing too early after exposure and without any symptoms, and this can lead to false negatives.
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