62. Public health is defined as the science of ensuring the safety and improving the health of communities. This is through education, policy making and research for disease and injury prevention, -This may Include vaccinating children and adults to prevent the spread of disease as well as educating people about the risks of using and handling hazardous substances. A) To ensure this, public health policy analysts evaluate health insurance programmes. B) One of the responsibilities of public health professionals is to track disease outbreaks. C) Public health aims to assure the conditions in which people can be healthy. D) Prevention of disease and injury helps to improve the quality of life in the community. E) Through the prevention of disease, people can spend their lives in good health.