Public health addresses threats to the overall health of a community based on population health analysis. Health is defined and promoted differently by many organizations. The World Health Organization, the United Nations body that sets standards and provides global surveillance of disease, defines health as: “A state of complete physical, mental and social well-being and not merely the absence of disease or infirmity. The Gwinnett County Health Department provides many services and strives to be a prepared, protected, and healthy community. Services the Health Department offers include: clinical services, environmental health services, maternal, child, and adolescent health services, epidemiology services, emergency preparedness, health promotion, and more. Gwinnett's Health Department works to meet the needs of its residents and visitors by monitoring and preventing disease, promoting health and well being, and preparing for disasters.