Public health is the science and art of preventing disease, prolonging life, and promoting health through organized efforts of society, communities, and individuals. It focuses on improving the overall well-being of populations by addressing factors that influence health such as sanitation, nutrition, hygiene, vaccination, and environmental safety. Unlike clinical medicine, which treats individual patients, public health emphasizes prevention, health education, and policy-making to create healthy living conditions and reduce the spread of diseases within communities.
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