Chapter 1. Introduction -- Chapter 2. Distribution of Disease -- Chapter 3. Descriptive Study -- Chapter 4. Cohort Study -- Chapter 5. Case-Control Studies -- Chapter 6. Experimental Epidemiology -- Chapter 7. Screening and Diagnostic Tests -- Chapter 8. Bias -- Chapter 9. Cause of Disease and Causal Inference -- Chapter 10. Disease Prevention and Surveillance -- Chapter 11. Communicable Diseases Epidemiology -- Chapter 12. Epidemiology of Non-communicable Diseases -- Chapter 13. Epidemiology of Public Health Emergencies -- Chapter 14. Molecular Epidemiology -- Chapter 15. Pharmacoepidemiology -- Chapter 16. Evidence-based Medicine and Systematic Review -- Chapter 17. Disease Prognosis -- Chapter 18. Nosocomial Infections -- Chapter 19. Epidemiology Design in Clinical Research.