Programs that protect the public health through comprehensive efforts to track the incidence and distribution of disease in the population and prevent, control and eradicate vaccine-preventable diseases, vector and food-borne illnesses, diseases that are transmitted person-to-person and other diseases that are spread by direct or indirect contact. Activities include routine surveillance of communicable disease activity, assessment of the community immunization level through school records and immunization studies, investigation of epidemic outbreaks, reporting of cases of infectious diseases to the proper authorities and taking appropriate measures such as isolation and contact tracing/notification to prevent disease transmission.
Programs that protect and improve the health of the community through the use of public health nurses whose services are available through departments of public health, schools and voluntary agencies, typically in connection with medical programs supervised by physicians. Activities may include home visits to provide nursing under medical supervision for acutely ill patients and people who are chronically ill; outreach to populations who may not seek out health care through a traditional medical facility; support for physicians in public health clinics and disease detection programs; first aid and screening programs for school children; nutrition counselling; family planning information and a wide range of health education and prevention programs for the community at large which deal with personal health practices that can help to prevent illness.
Programs that provide for the ongoing, systematic collection, analysis, interpretation and dissemination of data regarding health-related events for use in public health action to reduce morbidity and mortality and to improve health. Public health surveillance activities are generally authorized by legislators and carried out by public health officials; and may vary by jurisdiction. Included may be surveillance of infectious, chronic, or zoonotic diseases; injuries; exposures to toxic substances; health promoting or damaging behaviours; and other events associated with public health action.
The above terms and definitions are part of the Taxonomy of Human Services, used here by permission of INFO LINE of Los Angeles.