“The mask is your first line of defense,” Kimberly Prather, a professor of atmospheric chemistry at UC San Diego’s Scripps Institution of Oceanography, said during an Oct. 5 news conference about the need for clearer public health guidelines to combat the coronavirus.
The online event highlighted a letter in which Prather and five other scientists urged researchers to deliver clear information about how SARS-CoV-2 — the coronavirus that causes COVID-19 — is spread in the air.
In guidelines updated Oct. 5, the Centers for Disease Control and Prevention said the virus can sometimes be spread by airborne transmission.
“Some infections can be spread by exposure to virus in small droplets and particles that can linger in the air for minutes to hours. These viruses may be able to infect people who are further than six feet away from the person who is infected or after that person has left the