When breezy, wear masks outdoors to prevent coronavirus exposure

As the delta variant continues to spread, guidelines from the CDC recommend even the vaccinated wear masks indoors to prevent exposure and transmission, though it is less clear what people should do when outside. Researchers used a large eddy simulation to model cough jets in breezy and calm conditions. They found when a person coughs outdoors, wind flowing in the same direction can propagate the virus faster over longer distances than in calm conditions.