braydenalexaa pisze:During the test, you or a medical professional will insert a cotton swab into your nose, throat, or both to collect mucus and cells. Your sample is then usually applied to a strip that changes color if you test positive for COVID-19.Although these tests provide quick results, they aren’t as accurate as laboratory tests because they require more of the virus in your sample to report a positive result. Rapid tests come with a high risk of giving a false negative result.A false negative means the test shows you don’t have COVID-19 when you do actually have it.A March 2021 review of studies examined the results of 64 test accuracy studies evaluating commercially produced rapid antigen or molecular tests.The researchers found that the accuracy of the tests varied considerably. Here’s a look at their findings.For people with symptoms of COVID-19, the tests correctly gave a positive result an average of 72 percent of the time. The 95 percent confidence intervals were 63.7 to 79 percent, meaning that the researchers were 95 percent confident that the average fell between these two values.
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