Scientists explain what you need to know about the COVID-19 risks in the air, from how aerosols form to how to keep kids safe on a school bus.

The 6-foot rule for social distancing doesn’t account for all risks, particularly indoors. Here's what everyone needs to understand as cooler weather moves more activities inside.

UV disinfection is a proven means of killing pathogens like the SARS-CoV-2 virus, but it's not risk-free.

Aerosols of some FDA-approved food coloring could deactivate airborne viruses.

More than 200 scientists wrote to the WHO, warning about aerosol transmission of the coronavirus. The WHO has since acknowledged the evidence but hasn't change its advice yet.

SARS-CoV-2 can be spread through the air. But just how much of a factor that is has been hard to determine. Recent evidence suggests it is common, posing problems as public places begin to reopen.

Recommendations around mask usage are confusing. The science isn't. Evidence shows that masks are extremely effective to slow the coronavirus and may be the best tool available right now to fight it.

Aerosols are the tiny particles of liquid and material that float around in our environment. When they come from an infected person, they may be a significant source of coronavirus transmission.