Updated CDC guidance on transmission

Updated CDC guidance acknowledges coronavirus can spread through the air. The US Centers for Disease Control and Prevention updated guidance on its website to say coronavirus can commonly spread “through respiratory droplets or small particles, such as those in aerosols,” which are produced even when a person breathes.

Previously, the CDC page said that Covid-19 was thought to spread mainly between people in close contact — about 6 feet — and “through respiratory droplets produced when an infected person coughs, sneezes or talks.”

The page still says Covid-19 most commonly spreads between people who are in close contact with one another, and now says the virus is known to spread “through respiratory droplets or small particles, such as those in aerosols, produced when an infected person coughs, sneezes, sings, talks or breathes.”