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Don't read the test too early or too late, the experts say, because that may give you a false-negative or false-positive result. Only read your results within the time window that the COVID-19 ...
Even if it is faint, a positive line result on a rapid antigen COVID-19 test indicates that you are sick and likely contagious. For those who are recovering, the opaqueness of the results window ...
“A faint line on a COVID test means the test is positive,” says infectious disease expert Amesh A. Adalja, M.D., a senior scholar at the Johns Hopkins Center for Health Security.
COVID-19 rapid antigen tests (RATs) have been widely used for diagnosis of COVID-19. The World Health Organization (WHO) COVID-19 Case Definition states that a person with a positive RAT (also known as an antigen rapid diagnostic test or Antigen-RDT) can be considered a "confirmed case of SARS-CoV-2 infection" in two ways. [10]
If you get two negative at-home COVID test results 48 hours apart after previously testing positive, you are likely no longer contagious. But how long that will take is "wholly dependent on the ...
What To Do If You Test Positive For COVID-19 On An At-Home Test First, your best bet is to believe the test is correct. "Rapid at-home tests produce results within 10 to 15 minutes," Dr. Patel says.
A false positive Covid-19 test result can happen, but it’s rare, says Brian Labus, Ph.D., M.P.H., assistant professor at the University of Nevada Las Vegas School of Public Health.
Next, read about how to put together a stay-healthy kit for flu season and coronavirus. Sources Dr. Tista Ghosh, MD, an epidemiologist and medical director at digital health care company Grand Rounds