3-D model shows how aerosol cloud travels in air after person coughs

If there's already enough to give you pause about going food shopping amid the coronavirus pandemic, researchers in Finland have released a video that models how COVID-19 could spread from a single cough in a supermarket.
Aalto University, the Finnish Meteorological Institute, VTT Technical Research Centre of Finland and the University of Helsinki studied how aerosolized particles spewed from the respiratory tract when coughing, sneezing — or even talking – flow through the air.
“Someone infected by the coronavirus, can cough and walk away, but then leave behind extremely small aerosol particles carrying the coronavirus,” Aalto University Assistant Professor Ville Vuorinen said.
According to preliminary results, tiny particles carrying the coronavirus can linger in the air longer than was originally thought  so it is important to avoid busy public indoor spaces, said the report. This also reduces the risk of droplet infection, which remains the main path of transmission for coronavirus.