The Centers for Disease Control and Prevention on Friday updated its public COVID-19 guidance to explicitly state that the coronavirus can be transmitted via aerosols — smaller respiratory particles that can float — that are inhaled at a distance greater than six feet from an infected person. The risk is higher while indoors, bringing ventilation practices to the forefront. The new language marks a change from the federal health agency's previous stance that transmission of the virus typically occurs through "close contact, not airborne transmission."
Infectious disease experts have warned that the CDC and the World Health Organization (which has also updated its guidance) were overlooking evidence of airborne transmission during the pandemic, The New York Times notes, and some have stressed the need for the CDC to strengthen its recommendations for preventing exposure to aerosolized virus, especially in indoor workplaces like meatpacking plants.
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