Could coronavirus be worse in winter?
Drier air increases the risk of COVID-19 community transmission, according to Australian research that suggests the virus is a seasonal disease.
The University of Sydney-led research estimates COVID-19 community cases could increase by up to 8% for every 1% decrease in relative humidity.
That's because aerosols are smaller and therefore capable of hanging in the air for longer during periods of low humidity such as in the winter, according to the study.
Lead researcher Professor Michael