Submitted by AcJc_0604 t3_z4tozd in askscience
fastolfe00 t1_ixuog2z wrote
Reply to comment by [deleted] in How soon after exposure is the flu contagious? by AcJc_0604
Rapid antigen tests commonly give false negatives. They are better thought of as tests to prove you have COVID, not tests to prove you don't. You need multiple tests if you're sick and want to be sure it's not COVID. Time is only part of it.
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