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Medical Dictionary for the Dental Professions (2012) has defined "Public Health" as: "Art and science of community health, concerned with statistics, epidemiology, hygiene, and prevention and eradication of epidemic diseases."
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Saunders Comprehensive Veterinary Dictionary (3rd Edition, 2007) has defined "Public Health" as: "The field of human medicine that is concerned with safeguarding and improving the physical, mental and social well-being of the community as a whole. There are key roles for veterinarians in this service, especially in the area of zoonoses."
Public health authorities are concerned with the pollution levels in air and water, and must assure the safety of water used for drinking, for swimming, and as a source of sea food.
Public health incorporates the interdisciplinary approaches of epidemiology, biostatistics and health services. Environmental health, community health, behavioral health, health economics, public policy, mental health and occupational safety and health are other important subfields.
Modern public health practice requires multidisciplinary teams of public health workers and professionals including the following: physicians specializing in public health, community medicine, or infectious disease; psychologists; epidemiologists; biostatisticians; medical assistants or assistant medical officers; public health nurses; midwives; medical microbiologists; environmental health officers or public health inspectors; pharmacists; dentists; dietitians and nutritionists; veterinarians; public health engineers; public health lawyers; sociologists; community development workers; communications experts; bioethicists; and others.
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