Mass gatherings are a particular problem for communicable infectious diseases due to density, inter-regional mixing, and dispersal.

“yeah I'm a scattering brings people from wide geographic areas if you think about I live in Pittsburgh and there are Steeler fans that come from everywhere in the country to watch a Steeler game and then they go back to their hometowns that's a way you can disperse things and sporting games are not people sitting quietly with just one person there are social gatherings where people are yelling and screaming and eating and drinking and all types of things that have look at is an easy way to get from one person to another we know that when people shout and scream they make particles come out of their mouth that can transmit we've seen this choir practice for example with this corona virus just think of that it's at a football stadium and you can imagine how these types of things can transmit”