The CDC still says that SARS-COV-2, the virus that causes COVID-19, is most frequently spread among people in close contact with one another, through respiratory droplets produced when an infected person coughs, sneezes or talks. But in new guidance published Monday on its website, the agency also acknowledged that under certain circumstances, people have become infected by smaller particles that can linger in the air in enclosed spaces that are poorly ventilated.
The CDC, along with the WHO, have been cautious about warnings that the coronavirus can be spread through the air, even beyond six feet. This is an important change in public health recommendations for COVID-19 and shows that masks, along with distancing are important.