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SATURDAY, JUNE 14, 2025
Some social distancing may be needed into 2022, says Harvard researchers

Coronavirus chronicle

TBS Report
15 April, 2020, 02:05 pm
Last modified: 15 April, 2020, 02:42 pm

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Some social distancing may be needed into 2022, says Harvard researchers

"One possibility is that strict social distancing followed by intensive public-health detective work could chase down and eradicate the virus, like what happened with SARS-CoV-1, but with confirmed cases of the new pathogen approaching 2 million globally that outcome is seen as increasingly unlikely"

TBS Report
15 April, 2020, 02:05 pm
Last modified: 15 April, 2020, 02:42 pm
People keep social distance as they wait to enter a supermarket amid the coronavirus disease (COVID-19) outbreak in Madrid, Spain April 14, 2020. REUTERS/Sergio Perez
People keep social distance as they wait to enter a supermarket amid the coronavirus disease (COVID-19) outbreak in Madrid, Spain April 14, 2020. REUTERS/Sergio Perez

People around the world might need to practice some level of social distancing intermittently through 2022 to stop Covid-19 from surging anew and overwhelming hospital systems, a group of Harvard disease researchers said Tuesday.

Lifting social-distancing measures all at once could risk simply delaying the epidemic's peak and potentially making it more severe, the scientists warned in an article published Tuesday in the journal Science, Bloomberg reports.

The course of the pandemic will depend on questions not yet answered: Will the virus's spread change with the seasons? What immunity will people have after they're infected? And does exposure to coronaviruses that cause mild illnesses confer any protection against the pathogen that causes Covid-19?

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Those questions are being weighed by government leaders who have seen economies around the globe come to a standstill because of the social-distancing measures. With millions of people out of work and staying home, pressure is growing to loosen restrictions in the US and elsewhere. Doing so, experts have said, will depend on having in place measures to control the disease, such as widespread testing.

The Harvard researchers used computer models to simulate how the pandemic might play out. One possibility is that strict social distancing followed by intensive public-health detective work could chase down and eradicate the virus. That's what happened with SARS-CoV-1, which caused a 2003 outbreak. But with confirmed cases of the new pathogen approaching 2 million globally, that outcome is seen as increasingly unlikely, the researchers wrote.

Seasonal Illness

More likely is that the virus is here to stay like influenza, traveling the globe seasonally. In one model, 20 weeks of measures to limit spread were followed by an epidemic peak that was as great as an uncontrolled spread.

"The social distancing was so effective that virtually no population immunity was built," the researchers said of that scenario. If the virus is more transmissible in colder months, delaying the peak into the autumn could exacerbate the strain on health-care systems, they wrote.

To avoid such outcomes, on-and-off social distancing measures might be needed until 2022, unless hospital capacity is increased, or effective vaccines or treatments are developed.

The authors don't endorse a particular path forward but said they sought "to identify likely trajectories of the epidemic under alternative approaches."

Top News

social distancing / fighting coronavirus / Coronavirus Pandemic / Coronavirus / COVID-19 / Science journal

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