This picture taken on May 12, 2020, shows a sign of the World Health Organization (WHO) in Geneva next to their headquarters. (FABRICE COFFRINI/AFP via Getty Images)Hundreds of experts in 32 countries are urging the World Health Organization [WHO] to revise its coronavirus safety recommendations to include airborne transmission via smaller infectious aerosols, according to a report in the New York Times.The article, published Saturday, reported that 239 experts sent an open letter to the WHO detailing evidence of airborne transmission.