While we wait for a vaccine, the main approach to preventing COVID-19 has been physical distancing and wearing masks. Now, data from 149 countries has shown that COVID-19 is decreasing by an average of 13% as a result of physical distancing interventions. Four physical distancing measures in place have helped slow COVID-19 spread, including school closures, workplace closures, restricting large gatherings of people, and lockdowns. However, it appears that closing public transport was not linked to any additional benefits. These findings suggest that starting lockdowns earlier was linked to a larger reduction in the incidence of COVID-19. This may explain differences between countries. These results might not be 100% accurate because they rely on daily reported cases that sometimes can be inconsistent.
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