How Scientists Test Face Mask Effectiveness Against Coronavirus | NBC Nightly News

0 Просмотры
Издатель
Scientists around the world have conducted research that finds wearing face masks can significantly decrease the spread of the coronavirus by blocking droplets created when a person coughs, sneezes, or talks that would carry the virus.» Subscribe to NBC News:
» Watch more NBC video:

NBC News is a leading source of global news and information. Here you will find clips from NBC Nightly News, Meet The Press, and original digital videos. Subscribe to our channel for news stories, technology, politics, health, entertainment, science, business, and exclusive NBC investigations.

Connect with NBC News Online!
Visit :
Find NBC News on Facebook:
Follow NBC News on Twitter:
Follow NBC News on Instagram:

How Scientists Test Face Mask Effectiveness Against Coronavirus | NBC Nightly News
Категория
Фантастика
Комментариев нет.
Яндекс.Метрика