The World Health Organization says the WHO "acknowledges that there is new evidence" about the potential for air infection in Corona 19.

"We need to be open to this evidence and understand its implications for the way we spread and prevent it," said the WHO Director of Infection Control.

Earlier, 239 scientists from 32 countries sent an open letter to WHO, urging them to revise the precautions, suggesting the possibility of corona19 being infected with air.