More than 239 scientists said there's evidence to suggest that the novel coronavirus is airborne, urging the World Health Organisation (WHO) to revise its recommendations.
In an open letter to the agency, scientists from 32 countries have outlined the evidence showing smaller particles can infect people.
They suggest that while measures like washing hands and maintaining social distance are important, they may not be enough to curb the spread of the virus.
WHO spokesman Tarik Jasarevic said they are reviewing the letter "with our technical experts".


FBI foils "terror plot" targeting Los Angeles
Hong Kong court finds tycoon Jimmy Lai guilty in landmark security trial
Ukraine peace talks stretch into second day at start of pivotal week for Europe
Flash floods kill at least 37 people in Morocco's Safi province
'Hero' who disarmed Bondi gunman recovering after surgery, family says
School bus accident in Colombia kills 17, injures 20
Australia plans tougher gun laws after father and son kill 15 at Bondi Beach
Police to release man detained over Brown University mass shooting
