According to a literature review of COVID-19 infection rates, transmission of COVID-19 is 18.7-times more likely to occur indoors compared to outdoors, Healio reports.

Five studies in their analysis determined that less than 10% of reported global SARS-CoV-2 infections have occurred outdoors and that the odds of indoor transmission were 18.7 times higher in comparison to outdoor transmission (95% CI, 6-57.9).

“We sought to inform policies that reconcile the many health benefits of being outdoors with the very important need to reduce COVID transmission.”

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