1. Public health is the science and practice of preventing disease and promoting health in populations.
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2. It focuses on populations rather than individuals and is concerned with identifying and addressing the root causes of health problems.
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3. Public health interventions can include educational campaigns, policy changes, and the development of new medical treatments.
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4. Public health professionals work in a variety of settings, including government agencies, non-profit organizations, and research institutions.
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5. Public health efforts have led to significant improvements in life expectancy and quality of life, particularly in developed countries.
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6. Public health threats such as infectious diseases, environmental pollution, and chronic disease continue to be major challenges.
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7. Public health emergency preparedness and response is an important aspect of public health practice, to be ready for and respond to potential public health crises such as pandemics and natural disasters.
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8. Public health professionals use a variety of tools to gather and analyze data, including surveys, vital statistics, and laboratory testing.
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9. Public health research is an important component of the field, and helps inform the development of new policies and interventions.