Public health focuses on protecting and improving health at the population level. It includes disease prevention, sanitation, vaccination, nutrition, health education, surveillance, and emergency preparedness.
Prevention
Preventive care reduces disease risk before illness becomes severe. Examples include vaccination, screening, nutrition guidance, clean water, and hygiene.
Community health
Community programs respond to local needs such as maternal health, sanitation, mental health support, nutrition, and disease awareness.
Evidence
Public health decisions rely on data, research, surveillance, and measurable outcomes.