The World Health Organisation (WHO) has acknowledged there is “emerging evidence” that COVID-19 could be spread through particles in the air.
Professor Benedetta Allegranzi, technical lead for infection prevention and control, said the possibility of airborne transmission in “crowded, closed, poorly ventilated” settings could not be ruled out.

It comes after more than 200 scientists wrote an open letter to the agency urging officials to recognise the possibility of airborne transmission of the virus.