The World Health Organisation has acknowledged evidence that coronavirus can be spread by tiny particles suspended in the air.
An official says airborne transmission can't be ruled out in crowded, closed or poorly ventilated settings.
If the evidence is confirmed, it may affect guidelines for indoor spaces.
There are now more than 11 million cases and 500,000 deaths linked to Covid-19 globally.
Dr Mike Ryan, executive director of the WHO, fears there could be a sharp increase in coronavirus fatalities in the coming weeks:
Local TD Slams Government Hypocrisy In Trying To Induce Irish To Return Home
Man Appears in Court Over Alleged False Social Media Post About Asylum Seeker
Teacher Shortages Hit Wicklow Hard As Special Schools & DEIS Schools Disproportionately Affected
Dramatic Late Wonder Strike Sends Bray Wanderers Past Treaty United Into Play-Off Final
Wicklow's Fionnuala McCormack Makes History With 10th Place Finish In New York City Marathon
