Coronavirus shutdowns prevented 60 million infections in the US, study says

Coronavirus shutdowns prevented 60 million infections in the US, study says

Statewide shutdowns across the country may have prevented millions of coronavirus infections in the United States, according to a study published Monday.

Researchers found the U.S. may have been able to avoid an additional 4.8 million confirmed coronavirus cases, which translates to about 60 million more infections, as a result of statewide lockdowns and mandated social distancing restrictions, according to the report published in the peer-reviewed scientific journal Nature.

Infections were much higher than confirmed cases, they argued, as many people didn't have access to a coronavirus test or didn't go to their doctors to obtain one. The study analysis documented changes in testing procedures and availability, as well as differences in case detection across the country.

Data from Johns Hopkins University reported more than 1.9 million confirmed coronavirus cases and 110,000 deaths as of Monday.

The study’s authors used a “reduced-form” economic technique more commonly used to measure economic growth rates. They argued that, similar to COVID-19 infections, economic output generally increases exponentially as a result of policies and other conditions.

The study looked at 1,717 local, regional and national policies including travel restrictions, the cancellation of events, the closing of schools, retail and religious gatherings, quarantines and other emergency declarations from early April.

"They’re using economic growth as a proxy for interconnectedness and it’s the interconnectedness that drives the epidemic," said Dr. Kevin Dieckhaus, Chief of Infectious Diseases at University of Connecticut Health.

Dieckhaus expects the U.S. will be able to decouple economic activity and case transmission as some businesses restructure office settings to promote social distancing, schedule constant disinfecting and require a mask.

A separate study, also published Monday in the journal Nature, found such lockdown methods may have successfully prevented more than 3 million deaths across 11 European countries.

Both studies contribute to the growing evidence that national and regional lockdowns helped prevent coronavirus transmission and infection at a time when experts are concerned about a second wave of cases as the U.S. begins to ease restrictions and reopen the economy.

Giant kookaburra:A man built a giant, laughing kookaburra while he was in lockdown to 'cheer us up'

"The lockdown measures have served an important role in our society to prevent and mitigate unabated spread of the virus probably saving many millions of lives in doing so," said Michael Mina, assistant professor of epidemiology at Harvard T.H. Chan School of Public Health.

However, he's concerned the millions of confirmed cases the U.S. prevented with social distancing restrictions in spring may reappear in the fall. Most seasonal coronaviruses thrive in the fall and then begin to settle down in February and March.

"We have yet to experience this particular novel coronavirus during a season when it's usually most transmissible and that’s a scary thought," he said.

Dieckhaus says the fall may bring more cases as the physical properties of the coronavirus prefers the cold, dry weather and more people spend less time outdoors in the well-circulated air. But he said local officials and residents have the power to manage cases by upholding some preventative measures.

"The idea with all these changes is to continue the economic activity but doing it in a way that doesn't transmit the virus," he said.

Follow Adrianna Rodriguez on Twitter: @AdriannaUSAT.

Health and patient safety coverage at USA TODAY is made possible in part by a grant from the Masimo Foundation for Ethics, Innovation and Competition in Healthcare. The Masimo Foundation does not provide editorial input.

Source: https://www.usatoday.com/story/news/health/2020/06/08/covid-19-us-lockdown-prevented-60-m-coronavirus-infections-study-says/5317334002/

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