Name: Double masks offer better protection against COVID-19
Uploaded: 2021-02-11T19:05:24.000Z
Duration: 1 min 24 s
Description: Thousands of YouTube videos with English-Chinese subtitles! Now you can learn to understand native speakers, expand your vocabulary, and improve your pronunciation...

the 500 released new guidance Wednesday on mask wearing, telling Americans to masks are better than one, and if you Onley wear one, make sure it has a tight fit.

Researchers at the CDC in January conducted experiments to see how well wearing a cloth mask over a surgical mask and nodding the ear loops of a surgical mask and then tucking the excess material close to the face protects against Cove in 19.

They found that both of these methods helped reduce the exposure to potentially infected aerosols by more than 90% in laboratory simulations.

CDC Director Rochelle Wolinski New data released from CBC today underscore the the importance of wearing a mask correctly and making sure it fits closely and snugly over your nose and mouth nationwide.

 The daily tallies of new cases and hospitalizations from Cove in 19 have been dropping steadily in recent weeks. 