Emily Johnson“So people are now starting to test really fast, like day one, day two post-exposure, when we know that the average person won’t get a viral load that’s high enough to be detectable on PCR or antigen tests until day 3, 4, 5 or 6,” Mina said.
That’s why the FDA issued a safety communication to the public, advising anyone who uses a home test and gets a negative result to repeat it within 48 hours. It added the same direction for all Covid-19 home tests.
