So which test should I go for?
The more urgent question, says Butler-Wu, is: “Which test can you get?”
If you have symptoms and likely have been exposed to the virus by traveling or socializing, a positive antigen test is probably enough evidence that you have the virus, says Dr. Abraar Karan, an infectious disease physician at Stanford University.
As for PCR tests, availability depends on the demand in your community. Some testing facilities are slammed, with few appointments available and hours-long waits even if you can snag an appointment. And it can take several days to get results from a PCR test.
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