The end of summer brings the new school year and it may also bring a new spike in COVID-19. One way school officials have been looking to keep students and teachers safe is by improving the air quality in the classroom. Joseph Allen, director of Harvard University’s Healthy Buildings program, joins CBS News to discuss .
How much ventilation makes a Manitoba school safe? Experts say it s a moving target cbc.ca - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from cbc.ca Daily Mail and Mail on Sunday newspapers.
A new Harvard study found no difference in COVID-19 cases rates among students or staff in districts that had students sitting three feet apart compared to six feet apart.