cOVID 19 Don't scream, don't sing and sneeze into your sleeve

 Don't scream, don't sing

In a choir in the United States, a symptomatic (Covid 19)  singer infected more than thirty people and was arguably the cause of twenty probable cases. This, despite the application of distancing measures. 

Other cases have been reported in gyms or call centers, places where occupants sing, lose their breath or speak loudly. In the event of a violent exhalation, the clouds of droplets can be expelled up to 8 m