A member of Driving Force Crossfit Gym lifts a dumbbell during a socially distanced workout class on July 08, 2020 in Pembroke Pines, Florida.
Johnny Louis | Getty Images
The World Health Organization published new guidance Thursday, saying it can’t rule out the possibility that the coronavirus can be transmitted through air particles in closed spaces indoors, including in gyms and restaurants.
The WHO previously acknowledged that the virus may become airborne in certain environments, such as during “medical procedures that generate aerosols.” The new guidance recognizes some new research that suggests the virus may be able to spread through particles in the air in “indoor crowded spaces.” It cited “choir practice, in restaurants or in fitness classes” as possible areas of airborne transmission.
“In these events, short-range aerosol transmission, particularly in specific indoor locations, such as crowded and inadequately ventilated spaces over a prolonged period of time with infected persons cannot be ruled out,” the United Nations health agency’s new guidance says.
The WHO said in its guidance that while early evidence suggests the possibility of airborne transmission in such environments, spread by droplets and surfaces could also explain transmission in those cases. “However, the detailed investigations of these clusters suggest that droplet and fomite transmission could also explain human-to-human transmission within these clusters.”
The WHO added that more research is needed to further investigate preliminary findings.
The new guidance comes after 239 scientists from 32 different countries published an open letter earlier this week calling for the WHO and other health authorities to update their information on the coronavirus.
In an article entitled “It is Time to Address Airborne Transmission of COVID-19,” the group of scientists contend that the WHO needs to give more weight to the role of the airborne spread of Covid-19.
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