If violence spreads like a disease, it can be interrupted. How a new team in Milwaukee is trying to stop one shooting leading to another.

Cure Violence is a the national non-profit organization that for 16 years has helped multiple cities adopt strategies for violence prevention that mirror those used in disease control. Programs employ trained “violence interrupters” and outreach workers to identify and mediate potentially deadly conflicts, maintaining relationships with those involved to ensure the conflict does not reignite. Cleveland hopes that replicating the model will help reduce local violence and crime.

Victims of violence found in hospitals are more likely to return for emergency care than those with chronic illnesses. As a result, communities like Cleveland, Ohio are trying the approach of treating violence as a public health issue. By employing social workers and peer mentors for the victims while being treated, it is hoped that the cycle of violence can be interrupted and the root cause addressed.

In Brooklyn's Crown Heights neighborhood, an organization called Save Our Streets Crown Heights (S.O.S.) is taking steps to disrupt violence. The organization is modeled after Chicago's violence interrupters, which employ people from the neighborhood to connect with those most at-risk and disrupt conflicts and retalitory violence.

Two years after reorganizing a police gun-enforcement unit to focus it on an evidence-based approach to preventing retaliatory shootings, Portland city leaders abolished the unit in a round of police budget cuts and failed to reinvest that money in community-based alternatives that don't rely on the police. The result, criminologists say, is a worst-case scenario: a policing reform that creates a vacuum and could be to blame for an alarming spike in gun violence. The most effective solutions, they say, blend effective policing with proven community-based programs.

After two failed attempts, Oakland Ceasefire retooled its approach and since 2013 has been a significant factor in lowering homicides and nonfatal shootings. The program, used in various ways in many cities, identifies young men at high risk of getting shot or shooting others and then offers them life coaching and social services to keep them out of trouble. By de-emphasizing the role of police, pinpointing those most in need of help, boosting community involvement, and forming deeper personal relationships, the program is credited with a 32% reduction in gun homicides over a six-year study.

Healing Hurt People (HHP), the program that helped save his life, now employs men like Jermaine McCorey - men who used to be a part of a violent life on the streets of Philadelphia - to reach out to boys and young men in the emergency department and help get them through empathy and personalized support. HHP's goal is to help young people recognize the role trauma has played in shaping their lives, to respect and honor their experience and to help them avoid fueling the cycle of violence.

New Haven's Project Longevity has measurably reduced gang violence through an approach brings law enforcement, social service groups, and community leaders together to offer teenagers and young men incentives to stop the violence, and a way out for those who need help. It's a model that may provide a solution for other cities facing gang violence.

Team Rubicon, a non-profit organization of military veterans that provides disaster relief, has provided relief after flooding in Detroit, tornadoes in Oklahoma, a typhoon in the Philippines and an earthquake in Nepal, among dozens of other communities across the globe.

The four-year ROCA program reaches out to young men in Baltimore at risk of becoming involved in gun violence. Youth workers check in on participants a few times a week and give them opportunities to learn the skills necessary to find a job. The program's lessons are based on cognitive behavioral therapy and remind participants to pause and think before they act.

Next Step is a hospital-based violence intervention program based at Minneapolis' Hennepin County Medical Center that counsels gunshot victims to try to help lower the chances that they will be harmed again or seek to harm others. Focusing on young adults and their families, the program starts its work when a victim is hospitalized. The counseling and connections to support services can continue for months and even years.