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Coronavirus FAQ: Does a faint line on a self-test mean I'm barely contagious?

The FDA recommends to take at least two COVID-19 antigen tests 48 hours apart before ruling out a possible infection.

These days the world of at-home testing for COVID-19 is confusing. How often do I need to test to see if I'm really positive — or negative? Does a faint line mean I'm less contagious?

(Image credit: Justin Paget/Getty Images)


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