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Population density and virus strains will affect how regions can resume normal life For news media
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As a new, apparently more transmissible version of the virus that causes COVID-19 has appeared in several countries, new research finds that the transmissibility of viral strains and the population density of a region will play big roles in how vaccination campaigns can help towns and cities return to more normal activities.
The findings suggest that directing vaccines toward densely populated counties would help to interrupt transmission of the disease. Current vaccination distribution plans don’t take density into account.
Tony Ives at the University of Wisconsin–Madison and Claudio Bozzuto of the independent data research company Wildlife Analysis GmbH studied the spread of COVID-19 in the U.S. at the start of the pandemic, before people changed their behavior to avoid the disease. This let them uncover factors that may affect the transmission of COV