80% of coronavirus infections occur in 10% of popular places: a list of such locations
Most COVID-19 cases in major U.S. cities are due to visits to just a few types of places, according to a new study. More details about the places with the greatest risk of spreading COVID-19 told the publication New York Post.
Restaurants, gyms, hotels and churches make up the 10% of locations, which appear to account for 80% of infections.
“These places are smaller in size, more crowded, and people stay there for a long time,” said study co-author and professor at Stanford University, Jure Leskovets.
According to the professor, reducing the capacity of enterprises by up to 20%, rather than completely closing them, could reduce the transmission of the virus by 80%.
“Our work emphasizes that it doesn't have to be all or nothing,” Leskovets said.
The study, which involved researchers from Northwestern University and Stanford, analyzed mobile phone data for 98 million Americans in 10 major cities, including New York (NY), Philadelphia (PA), Washington (DC). Columbia), Los Angeles (California), Chicago (Illinois) and Houston (Texas).
Researchers tracked the movement of people to places such as restaurants, cafes, grocery stores, gyms and hotels, as well as doctors' offices and churches, while tracking the number of coronavirus cases in those areas.
“On average, restaurants, gyms, hotels, cafes, faith-based organizations and limited-service restaurants caused the largest projected increase in infections upon reopening,” the study said.
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Leskovets added that, based on the research model, "infection is very uneven."
“There are about 10% of places that account for more than 80% of all infections,” he said.
The study found that residents of low-income areas are most affected.
At least partly because there are fewer such places, so a lot of people gather there.
For example, “the model predicts that one grocery visit is twice as dangerous for a person with a lower income as for a person with a higher income,” Leskovets said. “This is because grocery stores visited by low-income people average 60% more people per square foot and visitors stay 17% longer.”
However, the study did not track people in potentially crowded areas, such as schools, prisons, and nursing homes.
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