'Evidence is now overwhelming': 3 things to know about airborne COVID-19:A roundup of the research

There's no better time of year than winter to catch a glimpse of your own breath suspended and swirling in the cold air. In someone infected with COVID-19, do the tiny droplets exhaled in that vapour contain enough viral particles to infect another person before they gradually settle to the ground, potentially tens of metres away?The Government of Canada recently acknowledged the risk that COVID-19 can spread through tiny, aerosolized respiratory droplets that hang in the air.