COVID-19 could be controlled if everyone wears a mask, CDC says

ABC News’ Dr. Jennifer Ashton discusses new research that shows wearing a double-layer cloth mask can help curb the spread of coronavirus.
0:59 | 07/15/20

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Transcript for COVID-19 could be controlled if everyone wears a mask, CDC says
Dr. Jennifer Ashton is back now with us and, Dr. Jen, we heard that promising news about the modern vaccine. Have you good news from the CDC about wearing masks. Exactly, Amy. And more evidence in real world situations about the benefits of masks not just for reducing the spread, but possibly for protecting others released by the CDC, this was out of Missouri where two hairstylists found to be infected with covid-19, they had contact with 139 clients. Everyone was masked for this prolonged close contact, more than 15 minute, obviously close range, they followed these people. Not a single known case of covid-19, so it proves in real world scenario that wearing a double layer or surgical mask actually has some benefit. Really important. Important and remarkable, indeed and something for us all to remember. Coming up next on "Gma," the

This transcript has been automatically generated and may not be 100% accurate.

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