To prevent further spread of the Delta variant, the US Centers for Disease Control and Prevention updated its mask guidance to recommend that fully vaccinated people wear masks indoors when in areas with “substantial” and “high” transmission of Covid-19, which includes nearly two-thirds of all US counties.
The updated CDC guidance makes “excellent sense,” said David Weber, MD, professor of medicine and board member of the Society of Healthcare Epidemiology.
“Breakthrough disease clearly occurs, and for those cases, we know they’re much more mild in vaccinated people, but we don’t know how infectious vaccinated people are,” he said. “But clearly, if you want to protect your children under 12 or grandchildren, or protect immunocompromised people, as well as protect your own health — from even mild disease — then you should be wearing a mask, particularly in areas of high transmission when indoors.”
Read the CNN article, published in the Philadelphia Tribune.