Throat Swabs Prevent COVID False Negatives

River D'Almeida, Ph.D
2 min readJul 7, 2020

False-negative results are particularly problematic in containing the spread of COVID-19 — infected individuals can unwittingly transmit the virus while being completely asymptomatic. Why do false negatives happen? A recent study by Johns Hopkins researchers reported that timing may be an important factor; testing too early increased the chances of a false negative test. Here, the authors estimated that those tested…

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River D'Almeida, Ph.D

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