The World Health Organization (WHO) is urging health experts to take heed as they say they have found "emerging evidence" that COVID-19 could be airborne.
"We have been talking about the possibility of airborne transmission and aerosol transmission as one of the modes of transmission of COVID-19," Maria Van Kerkhove, technical lead on the COVID-19 pandemic at the WHO said at a news conference.
Benedetta Allegranzi, the WHO's technical lead for infection prevention and control, said there was evidence emerging of airborne transmission.
Allegranzi said that there is "...The possibility of airborne transmission in public settings - especially in very specific conditions, crowded, closed, poorly ventilated settings that have been described, cannot be ruled out," she said. "However, the evidence needs to be gathered and interpreted, and we continue to support this."
The news comes as President Trump announced that he would cut funding to schools who do not open their classrooms in the fall.