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COVID-19 outbreak lasts days longer for each day's delay in social distancing

Video Credit: ANI - Duration: 01:10s - Published
COVID-19 outbreak lasts days longer for each day's delay in social distancing

COVID-19 outbreak lasts days longer for each day's delay in social distancing

A new analysis of COVID-19 outbreaks in 58 cities has found that places that took longer to begin implementing social distancing measures spent more time with the virus rapidly spreading than others that acted more quickly.

In a new paper from epidemiological researchers at The University of Texas at Austin, now in press with the CDC's journal Emerging Infectious Diseases, researchers studied cities throughout China and analyzed when first cases were detected, when social distancing measures were implemented and when the outbreak was considered contained.

The team found that every day a city delayed in implementing social distancing measures after the appearance of a first case added 2.4 days to the length of the outbreak.

To determine when an outbreak had been contained, scientists look at case counts and determine the reproduction number, a measurement that shows how many people will be infected by one infectious person.

If the reproduction number drops below 1, scientists consider the outbreak contained.

Other studies into the impact of delaying social distancing measures have used modeling to estimate a link between the time of measures being taken and the effect on outbreaks.

By contrast, this study used on-the-ground data to determine the link between cities taking measures to contain the virus and rates of the virus spreading.

The study was not able to determine which social distancing measures were most effective, but it showed that the timing of the first measure, regardless of the type, had a big impact.

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University of Texas at Austin University of Texas at Austin Public research university in Austin, Texas, United States

COVID-19 outbreak lasts longer if implementing physical distancing is delayed [Video]

COVID-19 outbreak lasts longer if implementing physical distancing is delayed

Cities that took more time to implement social distancing measures also spent more time dealing with the virus than others that acted quickly, suggested a new analysis of COVID-19 outbreaks in 58 cities. In a new paper from epidemiological researchers at The University of Texas at Austin, now in press with the CDC's journal Emerging Infectious Diseases, researchers studied cities throughout China and analyzed when first cases were detected, when social distancing measures were implemented and when the outbreak was considered contained. The team found that every day a city delayed implementing social distancing measures after the appearance of a first case added 2.4 days to the length of the outbreak. The findings are applicable both to communities experiencing their first outbreaks and those that may see a resurgence in the coming months, Meyers said. Waiting a week after early signs of resurgence might require about 17 more days of social distancing to slow the spread of the pandemic, according to the data. To determine when an outbreak had been contained, scientists look at case counts and determine the reproduction number, a measurement that shows how many people will be infected by one infectious person. If the reproduction number drops below 1, scientists consider the outbreak contained. Other studies into the impact of delaying social distancing measures have used modeling to estimate a link between the time of measures being taken and the effect on outbreaks. By contrast, this study used on-the-ground data to determine the link between cities taking measures to contain the virus and rates of the virus spreading. The study was not able to determine which social distancing measures were most effective, but it showed that the timing of the first measure, regardless of the type, had a big impact. Although the study looked at cities experiencing the earliest days of an outbreak, the findings are also relevant for cities in the middle of an outbreak, Meyers said.

Credit: ANI    Duration: 01:18Published

Centers for Disease Control and Prevention Centers for Disease Control and Prevention United States government public health agency

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