A public health officer coordinates health care institutions, organizations, and resources to ensure a health care system is following health codes and safety practices. Many public health officers work as part of the military, with duties to provide health inspections across the entire system to establish efficient health and medical provisions; others work in civilian hospital or health care systems. As a public health officer, you perform field observations, conduct interviews with stakeholders in health systems, collect samples, write reports, and study disease vectors to find ways to counteract the spread of contagions.