Agency for Toxic Substances and Disease Registry


public health

 the field of health science that is concerned with safeguarding and improving the physical, mental, and social well-being of the community as a whole. The united states public health service (USPHS) is a federal health agency that is part of the United States Department of Health and Human Services. State and county public health agencies function under the supervision of and with financial support from the Department of Health and Human Services.public health nursing the branch of nursing concerned with providing nursing care and health guidance to individuals, families, and other population groups in settings such as the home, school, workplace, and other community settings such as medical and health centers. The nurse in this field, a community health nurse, must have a baccalaureate degree and training in public health nursing theory and practice; employment is typically with a local agency such as a nonprofit proprietary organization or with an agency under the United States Department of Health and Human Services. The work involves implementing such programs as school and preschool health programs, immunization and treatment of communicable diseases, maternal and child health clinics, and home visits for the purpose of providing health education and nursing care. There is also frequent participation in educational programs for nurses, allied professional workers, and civic organizations, and involvement in studying, planning, formulating public policy, and putting into action local and national health programs.