Coronavirus: Does COVID-19 spread more in winter – Expert warning | UK | News
While this might not seem to make sense for the UK as it rains considerably more in winter, air actually becomes dryer as it holds less moisture as the temperature goes down.
What’s more, having the heating on makes the air around us even dryer because of evaporation.
According to Professor Michael Ward, an epidemiologist at the University of Sydney and lead author of the study, this is because the droplets we exhale become smaller when they have less moisture to become enveloped in.
He told The Australian: “When you sneeze and cough, those smaller infectious aerosols can stay suspended in the air for longer.