Results for rapid tests can come back in under an hour while the results from regular PCR results typically take 24 hours or more, and in some cases, up to 96 hours.
Next, let's get something off the table: The term"rapid test" is usually applied to antigen tests, but the term can apply to both antigen tests and PCR tests, but the cost of the rapid PCR test is prohibitive for many. Results for rapid tests can come back in under an hour -- as little as 15 minutes for the antigen test. However, the results from regular PCR results typically take 24 hours or more — in some cases, up to 96 hours.
The antigen tests are familiar to many now as the"at-home" tests people have been taking, whether handed out for free by schools or governmental agencies. or bought over the counter at a drugstore. Unlike PCR and lateral flow tests, which detect an active infection, antibody tests determine if you have already had the virus and are no longer infectious. These should not be taken if you suspect you have an active infection, because it can take one to three weeks after you are infected to build up enough antibodies to test. Antibody tests should also not be used as a replacement for getting vaccinated, since contagious variants like delta and omicron can cause reinfections.
The lines, of course, are often full of people there to get tested because they're showing symptoms of the coronavirus, reports NBC 7's Kelvin Henry.
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