Take it for what it’s worth from NYT.
2,773 People Are Under Quarantines in New York City
Update: Gov. Andrew M. Cuomo has declared a state of emergency in New York over the coronavirus.]
The number of confirmed cases of the new coronavirus in New York State doubled on Thursday to 22, with officials announcing eight new cases in Westchester County, one on Long Island and two patients in New York City who are critically ill.
But the virus’s potential reach was underscored by a much larger number: The City Department of Health is keeping tabs on 2,773 New Yorkers currently in home isolation, most of them in self-quarantine, city officials said on Thursday.
About 4,000 people are in quarantine throughout the state, including 2,700 in New York City, as a precautionary measure, New York Gov. Andrew Cuomo said Friday.