Introduction to Global Health - Global Health Issues | Lecture Notes - YNetStudyHub
Global Health Issues

Introduction to Global Health

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This topic will provide an overview of global health, including definitions, key concepts, and the importance of addressing health issues on a global scale.

Introduction to Global Health


1. What Is Global Health?

  • Definition – A collaborative, interdisciplinary field that seeks to improve health and achieve equity for all people worldwide.
  • Scope – Encompasses disease prevention, health promotion, and health system strengthening across borders.
  • Core Principles
    • Equity – Reducing health disparities between and within countries.
    • Solidarity – Shared responsibility for health outcomes.
    • Interdependence – Health of one population influences the health of others.

2. Why Global Health Matters

Reason Explanation
Disease Burden Communicable (e.g., COVID‑19, malaria) and non‑communicable diseases (e.g., diabetes) affect billions.
Economic Impact Ill health reduces productivity, strains health budgets, and hampers development.
Security Pandemics, antimicrobial resistance, and health‑related migration are threats to global stability.
Human Rights Access to health care is recognized as a fundamental right in international law.

3. Determinants of Global Health

Category Key Factors
Biological Genetics, age, sex, immunity
Environmental Climate change, air/water quality, urbanization
Social & Economic Poverty, education, gender equity, employment
Behavioral Nutrition, physical activity, substance use
Health System Service coverage, workforce, financing, governance
Political Policy frameworks, conflict, trade agreements

4. Major Global Health Challenges

  1. Infectious Diseases – Emerging pathogens, vaccine‑preventable diseases, HIV/AIDS, tuberculosis.
  2. Non‑Communicable Diseases (NCDs) – Cardiovascular disease, cancer, chronic respiratory disease, diabetes.
  3. Maternal & Child Health – High rates of maternal mortality, under‑5 mortality, malnutrition.
  4. Health Inequities – Disparities based on geography, income, ethnicity, gender.
  5. Antimicrobial Resistance (AMR) – Growing resistance threatens treatment of common infections.
  6. Climate Change & Environmental Health – Heat‑related illness, vector‑borne disease expansion, food insecurity.

5. Global Health Governance

Actor Role
World Health Organization (WHO) Sets norms, provides technical assistance, coordinates responses to health emergencies.
United Nations (UN) System UNICEF, UNDP, UNFPA address child health, development, and reproductive health.
Donor Agencies The Global Fund, Gavi, USAID, DFID fund disease‑specific programs and health system strengthening.
International NGOs Médecins Sans Frontières, Save the Children, Partners In Health deliver care and advocacy.
Multilateral Partnerships Sustainable Development Goals (SDGs), especially Goal 3: “Good Health and Well‑Being.”
National Governments Implement policies, allocate resources, and enforce regulations.

6. Approaches & Strategies

6.1. Health Systems Strengthening

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Unit Syllabus 10 Topics
Introduction to Global Health
Determinants of Health
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Infectious Diseases and Global Health
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Non-communicable Diseases (NCDs) in Global Health
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Maternal and Child Health
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Global Health Governance and Organizations
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Health Inequalities and Health Equity
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Climate Change and Health
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Global Health Security
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Sustainable Development Goals (SDGs) and Global Health
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