A statement by the WHO's South-East Asia regional office said, “Airborne spread has not been reported for COVID-19. Based on the information received so far and on our experience with other coronaviruses, COVID-19 appears to spread mostly through respiratory droplets (for instance produced when a sick person coughs) and close contact. This is why WHO recommends maintaining hand and respiratory hygiene.

"The Chinese authorities reported that there could be a possibility of aerosol transmission in a relatively closed environment with prolonged exposure to high concentrations of aerosols, like in ICUs and CCUs in hospitals, but more investigations and analysis of epidemiological data is needed to understand this mode of transmission of the virus.