This document discusses injury epidemiology and prevention. It defines injury epidemiology as characterizing injury occurrence and identifying risk factors. Injuries can happen in various environments like homes, workplaces, and during transportation. The injury epidemiological model considers host, agent, and environmental factors. Some common unintentional injuries are road accidents, falls, burns, drowning, and sports injuries. Intentional injuries include interpersonal violence, self-harm, poisoning, and drug overdoses. Key interventions to reduce injuries include education, laws and policies, empowering stakeholders, engineering controls, emergency services, and research. Community safety programs aim to implement these injury prevention strategies.