Wearing a face mask ‘reduces spread of Covid-19 through coughing and speaking’

They said that the findings could have implications for social distancing measures.
Wearing a face covering lowers the risk of spreading Covid-19 to others through speaking and coughing, new research suggests.
Speaking and coughing without face protection exposes people nearby to droplets carrying the virus that could otherwise be stopped by wearing a mask, according to the study.