why its now most important to wear mask to avoid COVID-19 Dr muhammad afzal 8:42 4 years ago 37 152 Далее Скачать
How wearing a mask can help prevent the spread of COVID-19 | KVUE KVUE 2:16 4 years ago 2 413 Далее Скачать
Wearing a mask more effective against COVID-19 than hand washing, research says WCNC 1:21 4 years ago 1 176 Далее Скачать
Latest on COVID-19 precautions: Should we still be wearing a mask? WFAA 4:31 2 years ago 1 075 Далее Скачать
Why wearing a mask is important to slow the spread of COVID-19 | KVUE KVUE 1:52 4 years ago 668 Далее Скачать
Why two masks can boost protection against COVID-19 variants CBC News 15:14 3 years ago 69 712 Далее Скачать
What is COVID-19? | Should You Wear a Mask? | Scott Folk, MD | Mosaic Life Care Mosaic Life Care 5:19 4 years ago 6 932 Далее Скачать
Doctor Answers COVID-19 Face Mask Questions: Do I Need A Mask? How To Wear Masks Safely? Dr. Yvette Lu 16:17 4 years ago 1 640 Далее Скачать
Are two face masks better than one for stopping COVID-19? CBS News 7:49 3 years ago 23 321 Далее Скачать
COVID-19: Do masks reduce your oxygen levels? CBC News: The National 3:32 4 years ago 14 387 Далее Скачать
Myth-Busting Masks + COVID19 With Dr. Caroline Buckee | Jen Atkin JEN ATKIN 10:01 4 years ago 16 127 Далее Скачать