Public Health Guides
Foundations
Core concepts every public health learner needs.
What Is Public Health? Definition, Scope and Why It Matters
Public health is the science and art of preventing disease, prolonging life and promoting health through the organised efforts of society. It protects whole populations rather than treating one patient at a time.
The 10 Essential Public Health Services and Core Functions Explained
Public health agencies have three core functions — assessment, policy development and assurance — delivered through ten essential services, from monitoring health status to building a skilled workforce.
Social Determinants of Health: Why Where You Live Shapes How Long You Live
Social determinants of health are the conditions in which people are born, grow, work, live and age — income, education, housing, gender, caste and access to services — that drive most health inequalities.
Epidemiology Basics: Incidence, Prevalence, Study Designs and Outbreaks
Epidemiology studies how disease is distributed in populations and what determines it. Key measures are incidence and prevalence; key designs are cohort, case-control, cross-sectional and randomised trials.
Levels of Prevention: Primordial, Primary, Secondary, Tertiary and Quaternary
Prevention works at five levels: stopping risk factors from emerging (primordial), preventing disease (primary), detecting it early (secondary), limiting disability (tertiary) and avoiding over-medicalisation (quaternary).
Educational content by PHC-Nepal. It does not replace professional medical advice. Figures are drawn from the cited organisations and may be updated over time.