U.S. Centers for Disease Control and Prevention (CDC) in an updated guidance on Monday said COVID-19 can spread through airborne transmission, a month after it took down a similar warning.
It said some people could get infected by exposure to the novel coronavirus in small droplets and particles, or aerosols, that can linger in the air for minutes to hours.
Aerosols lingering in the air could be a major source of COVID-19 transmission, a group of U.S. scientists warned in an unrelated open letter published in medical journal Science on Monday.
The focus must be on protecting against airborne transmission because individuals with COVID-19 release thousands of virus-laden aerosols and far fewer droplets while breathing and talking, the scientists said.
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