The U.S. Centers for Disease Control and Prevention and the World Health Organization have continued their guidelines which states that SARS-COV2 primarily spread via droplets from infected individuals coughs, sneezes or when they talk. But the reports from anecdotal suggests that the transmission possibly can take place through particles suspended in the air (aerosol transmission).
A group of 239 scientists from 32 countries wrote an open letter to the World Health Organization, claiming that the Covid-19 is airborne, and they plan to publish their findings in a journal soon.
So far, WHO has put their spotlight only on the cases of medical procedures that produce aerosols, or droplets smaller than five microns where the virus can spread through the air.
The WHO kept fostering frequent hand washing to prevent the virus, even though the likelihood of the contagion to spread via surfaces is very low.
During April, a team of 36 experts on air quality and aerosols had advised WHO to consider mounting evidence on the airborne transmission of the virus. For example, In a choir practice at Washington State, several people developed symptoms of COVID-19 even when they had not shaken hands or stood close to one another, and two of them died.
Lately, The World Health Organization acknowledged that the “evidence emerging” suggests the transmission of the coronavirus is airborne and said that such transmission particularly in “indoor locations where there are crowded and inadequately ventilated spaces where infected persons spend long periods of time with others, cannot be ruled out.”
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