At-home rapid antigen tests are an undeniably helpful tool to prevent the spread of COVID-19. But the results from rapid tests — and how to act on them — can also be confusing, especially for people who just keep testing positive late into their infections.

Nearly 90% of cases in the U.S. right now are caused by the BA.5 omicron subvariant, according to the latest estimates from the Centers for Disease Control and Prevention. And, while cases are on the decline now, experts say new variants and surges are likely inevitable as the fall approaches.

Research from the CDC indicates most people who have COVID-19 can expect to see a positive result for five to nine days. But some people continue to get positive test results for even longer than that, and it’s especially hard to know what to do in those circumstances.

Learn when to take a COVID-19 rapid test, how to interpret the results and when it’s OK to stop isolating — even if you’re still testing positive at 10 days and beyond.

When should you take an at-home COVID-19 test?

In the event that you develop any symptoms that might signal COVID-19, …read more



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