Peter Berglund / iStock
A study concluding that wearing a disposable medical procedure mask under a reusable cloth face covering protects the wearer against COVID-19 infection better than a mask alone has some scientists worried that it could inadvertently lead to a false sense of security, risky behaviors, and infections.
The study, one of a series on pandemic face coverings funded partially by the Centers for Disease Control and Prevention (CDC), was published on Apr 16 in
JAMA
Internal Medicine. The CDC used the studies as a basis for its Apr 6 updated face covering guidelines, which call for the use of a multilayered cloth mask or a disposable mask under a cloth mask to press the edges of the disposable mask against the face.
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