A few recent preprint studies, which havent yet been peer-reviewed, have indicated that some people who get the Omicron variant may test positive for longer and spread the virus for longer than previous strains. U.S. Department of Health and Human Services. Excluded 21 persons with partial vaccination, and 36 unvaccinated persons with previous infection (overall 57 excluded, 41 symptomatic infections and 16 asymptomatic infections). CDC is not responsible for the content A preprint study of close to 100 vaccinated college students at Boston University suggests that a majority were no longer infectious after five days. If your symptoms are improving and you haven't had a fever in the last 24 hours (or taken any fever-reducing medication), you're done isolating. They help us to know which pages are the most and least popular and see how visitors move around the site. Sometimes an at-home COVID-19 antigen test can have a false-negative result. By Christine Zink, MD (If you think it could be a false-positive, you can retest.). Among persons in this study with symptomatic infection, 64% received a positive antigen test result during the 59 days after symptom onset. This activity was reviewed by CDC and was conducted consistent with applicable federal law and CDC policy.**. If you have access to antigen tests, you should consider using them. A clinical case definition of post COVID-19 condition by a Delphi consensus, 6 October 2021. As Dr. Dowdy explained, their "immune system is not getting rid of the virus" as effectively as it shouldwhich would also result in testing positive for COVID-19 for a longer period of time than someone who doesn't have a compromised immune system. Antigen tests might be a useful tool to guide recommendations for isolation after SARS-CoV-2 infection. CDC is not responsible for Section 508 compliance (accessibility) on other federal or private website. Following CDC recommendations, YKHC advised continued mask use for 10 days after symptom onset even if a person met the criteria for ending isolation after 5 days. ). People who continue to have symptoms or are immunocompromised, for instance, may continue to shed viral particles for longer periods of time and should continue to isolate, the Times reported. If you get COVID-19, you may test positivefor several weeks after your infection clears. She taught residents and medical students at Brown University in RI. ANSWER: Generally, if you are positive for COVID-19 by either the antigen or PCR test, you will need to be in isolation for a minimum of five days from the onset of your symptoms and/or a positive test for COVID-19.

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