Although a 14-day quarantine after exposure to the new coronavirus is 'well supported' by evidence, some infected people will not show symptoms until after that period, according to authors of a recent analysis published in Annals of Internal Medicine.
But about 101 out of 10,000 people could show symptoms after the end of that 14-day monitoring period, they cautioned.
The estimated incubation period for the new coronavirus in the 181-patient study was a median of 5.1 days. That is comparable to previous estimates of COVID-19 cases outside Wuhan and consistent with other known human coronavirus diseases, such as severe acute respiratory syndrome , which had a reported mean incubation period of 5 days, Lauer and colleagues noted.
"Our estimate of the incubation period definitely supports the 14-day recommendation that the CDC has been using," she said in an interview.
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