What Does ‘Negative’ on a Coronavirus Test Really Mean? President Trump’s recent tests are a reminder that although many products exist, none test for infectiousness. https://ift.tt/2XidLiy https://nyti.ms/3eyQv5F

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President Trump’s recent tests are a reminder that although many products exist, none test for infectiousness.

from NYT > Top Stories https://nyti.ms/34212nv
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