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  2. www.cnn.com › 2020/11/03 › healthCovid-19 testing: Here’s why you can be contagious but still ...

    Nov 3, 2020 · “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.

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