Violence may be a 'socially infectious disease'

New Scientist. “Our study clarifies doubt that exposure to community violence is indeed part of the contagion process.”
Walking away
“It suggests that the classic public health approaches to the control of infectious disease - such as vaccination - might have useful analogues in violence prevention,” adds Jeffrey Bingenheimer, also on the team.
“For every specific act of violence [that violence prevention] programmes prevent, they may also prevent a chain reaction of violence among those who would have been exposed to that violent act,” he told New Scientist