Science that deals with the protection and improvement of community health by organized community effort.

Under the Health Insurance Portability and Accountability Act (HIPAA), an agency or authority of the United States: a state; a territory; a political subdivision of a state, a territory, or an Indian tribe; or a person or entity acting under a grant of authority from or contract with such public agency including the employees or agents of such public agency or its contractors, persons, or entities to whom it has granted authority that is responsible for public health matters as part of its official mandate.

Registered nurse who works with families in the home, in schools, at the workplace, in government agencies, and at major health facilities. PHNs must complete a baccalaureate degree program approved by the National League for Nursing (NLN) or the American Association of Colleges of Nursing (AACN) for public health nursing preparation or after registered nurse study. A certification program sponsored by the Division of Community Health Nursing of the American Nurses Association is also available.

Nonidentifiable data that are within the public domain.