Don’t get a false sense of security with Covid-19 testing. Here’s why you can test negative but still be infected and contagious – CNN

(CNN)If you think a negative test result means you don’t have coronavirus, you could be wrong.
It can take days before a new infection shows up on a Covid-19 test.
“We know that the incubation period for Covid-19 is up to 14 days. And before that, you can be testing negative, and have no symptoms,” emergency medicine physician Dr. Leana Wen told CNN. “But you could actually be harboring the virus and be able to transmit it to others.”
So if you want to get tested as a precaution before seeing friends…

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