When the World Health Organization announced – incorrectly, as became apparent later – in March 2020 that the Covid-19 virus was not airborne, Prof Lidia Morawska knew she had to do something.
A renowned expert in air quality and health, Morawska, of the Queensland University of Technology, began contacting international colleagues. She eventually gathered 239 scientists globally to highlight the risk of airborne transmission of Sars-CoV-2.
