Последние добавленные видео:
how-does-covid-spread-in-schools
-
2 года назад
1909 2 года назад 2:48Research on COVID spread in schools looks at vaccinated, unvaccinated students
-
4 года назад
5159 4 года назад 6:23Coronavirus: How did Covid-19 spread in hospitals? – BBC Newsnight
-
4 года назад
3420 4 года назад 2:05Improving school ventilation could help reduce COVID-19 spread in schools: experts
-
Трансляция закончилась 4 года назад
1814 Трансляция закончилась 4 года назад 56:54How does coronavirus spread?
-
3 года назад
75 3 года назад 52:06Keeping Students Safe: Testing for COVID and Limiting its Spread in Schools
-
3 года назад
186 3 года назад 2:11Ventilation is key to slowing spread of COVID in schools: Is your child's school making updates?
-
4 года назад
45 4 года назад 1:07Coronavirus and schools: How the community contributes to spread
-
3 года назад
256498 3 года назад 6:48How Risky Is the Classroom With Covid-19 Controls in Place? | WSJ
-
3 года назад
175878 3 года назад 13:29Spread in US schools
-
3 года назад
1565 3 года назад 2:40What role are Michigan schools playing in spread of COVID-19?
-
2 года назад
731 2 года назад 10:25How Masks Helped Prevent COVID-19 Spread in Schools
-
4 года назад
38524 4 года назад 5:12Back to school: What can teachers and students do to prevent the spread of COVID-19?
-
3 года назад
6384 3 года назад 4:45Breaking down Ontario schools’ role in COVID-19 spread
-
3 года назад
196 3 года назад 4:17COVID-19 Warriors: How does the coronavirus spread?
-
3 года назад
13773184 3 года назад 3:59The Story of Coronavirus (full version), English
-
4 года назад
99553 4 года назад 3:33How are U.S. schools preparing for a coronavirus outbreak?
-
4 года назад
185613 4 года назад 5:03How easily can children contract and spread coronavirus?
-
3 года назад
1014 3 года назад 1:56A kid’s guide to COVID: How is COVID spread?