WHO teams up with 500 experts to define transmission of diseases spread 'through the air'

During the early days of covid in 2020, around 200 aerosol scientists publicly complained that the WHO had failed to warn people of the risk that the virus could spread through the air. 

The World Health Organization and around 500 experts have agreed for the first time what it means for a disease to spread through the air, in a bid to avoid the confusion early in the covid-19 pandemic that some scientists have said cost lives.

The Geneva-based UN health agency released a technical document on the topic on Thursday.