Yes. Even with a new variant, JN.1, dominating cases nationwide, rapid tests should be able to accurately capture whether you are contagious. That is because rapid tests detect a protein inside the virus, rather than the spike protein on the surface of the virus that has changed across variants, said Aubree Gordon, an infectious disease epidemiologist at the University of Michigan.
If it were me and I knew I only had one test, and I became symptomatic this morning, I would not use that test today, said Dr. Michael Mina, a former Harvard epidemiologist who is now the chief science officer for eMed, a health care technology company that offers Covid testing and virtual care. I'd use it the day after tomorrow.
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