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Coronavirus

WHO Finally Acknowledges Possibility of COVID-19 Airborne Transmission

The World Health Organization (WHO) on Thursday heeded calls from more than 200 scientists, who urged the global health authority to acknowledge that COVID-19 may spread by air.

Previously, the WHO said contact with large respiratory droplets, like those expelled in a sick person’s cough or sneeze, appeared to be the primary way COVID-19 spreads. But in a highly publicized letter published earlier this week, a large group of scientists argued the WHO’s guidance neglected to adequately address another important route of transmission: inhaling tiny respiratory particles generated by a sick person, which can remain suspended in the air indoors for hours.

In a scientific brief published Thursday, the WHO allowed that “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.” Still, it maintained that further studies on airborne transmission are needed, and said the evidence is strongest for respiratory droplet transmission.

Read the source article at time.com

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