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Strict restrictions, stay-at-home orders and shutdowns are slowing down spread of coronavirus, finds new data

At least 248 million Americans in at least 29 states have been told to stay at home. It had seemed nearly impossible for public health officials to know how effective this measure and others have been in slowing the coronavirus. But the new data offers evidence, in real time, that tight social-distancing restrictions may be working, potentially reducing hospital overcrowding and lowering death rates, experts said.

|Mar 31, 2020, 13:50:36 IST

Harsh measures, including stay-at-home orders and restaurant closures, are contributing to rapid drops in the numbers of fevers — a signal symptom of most coronavirus infections — recorded in states across the country, according to intriguing new data produced by a medical technology firm.At least 248 million Americans in at least 29 states have been told to stay at home. It had seemed nearly impossible for public health officials to know how effective this measure and others have been in slowing the coronavirus.But the new data offers evidence, in real time, that tight social-distancing restrictions may be working, potentially reducing hospital overcrowding and lowering death rates, experts said.

The company, Kinsa Health, which produces internet-connected thermometers, first created a national map of fever levels on March 22 and was able to spot the trend within a day. Since then, data from the health departments of New York state and Washington state have buttressed the finding, making it clear that social distancing is saving lives.

The trend has become so obvious that on Sunday, President Donald Trump extended until the end of April his recommendation that Americans stay in lockdown. Trump had hoped to lift restrictions by Easter and send Americans back to work.[caption id="attachment_8172811" align="alignleft" width="380"]

New York is emerging as the epicentre of coronavirus infection in the US. AP[/caption]“That would have been the worst possible Easter surprise,” said Dr Peter J. Hotez, dean of the National School of Tropical Medicine at Baylor College of Medicine in Houston, who added that he thought the Kinsa predictions were based on “very robust technology.”Kinsa’s thermometers upload the user’s temperature readings to a centralized database; the data enable the company to track fevers across the United States.Owners of Kinsa’s thermometers can type other symptoms into a cellphone app after taking their temperature. The app offers basic advice on whether they should seek medical attention.Kinsa has more than 1 million thermometers in circulation and has been getting up to 162,000 daily temperature readings since COVID-19 began spreading in the country.The refinement Kinsa made on March 22 was to add “trends” — a map showing whether all fevers were increasing, decreasing or holding steady.“Finally, people are asking us for our data,” Inder Singh, founder of Kinsa, said Monday. “We’re talking with six states about them distributing more thermometers. People understand the value now.”Donald G. McNeil Jr. c.2020 The New York Times Company

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