Although the development of the germ theory of disease in the latter half of the nineteenth century marks a major revolution in medical science, comparable to the discoveries of Galileo in astronomy or Darwin in biology, it cannot be reduced to the heroic efforts of a single researcher or group of researchers. Rather, a number of conceptual, technological and institutional preconditions made the germ theory possible. Among these, contagionism, microscopy and hospital medicine all played a major role. The germ theory of disease facilitated a wide range of scientific advances, including the isolation of pathogens, the creation of vaccines and the introduction of antiseptics in surgery.

Reading assignment:
Snowden, Naples in the Time of Cholera, chapter 5-7, conclusion

1. Introduction to the Course
2. Classical Views of Disease: Hippocrates, Galen, and Humoralism
3. Plague (I): Pestilence as Disease
4. Plague (II): Responses and Measures
5. Plague (III): Illustrations and Conclusions
6. Smallpox (I): 'The Speckled Monster'
7. Smallpox (II): Jenner, Vaccination, and Eradication
8. Nineteenth-Century Medicine: The Paris School of Medicine
9. Asiatic Cholera (I): Personal Reflections
10. Asiatic Cholera (II): Five Pandemics
11. The Sanitary Movement and the 'Filth Theory of Disease'
12. Syphilis: From the "Great Pox" to the Modern Version
13. Contagionism versus Anticontagionsim
14. The Germ Theory of Disease
15. Tropical Medicine as a Discipline
16. Malaria (I): The Case of Italy
17. Malaria (II): The Global Challenge
18. Tuberculosis (I): The Era of Consumption
19. Tuberculosis (II): After Robert Koch
20. Pandemic Influenza
21. The Tuskegee Experiment
22. AIDS (I)
23. AIDS (II)
24. Poliomyelitis: Problems of Eradication
25. SARS, Avian Inluenza, and Swine Flu: Lessons and Prospects
26. Final Q&A

This course consists of an international analysis of the impact of epidemic diseases on western society and culture from the bubonic plague to HIV/AIDS and the recent experience of SARS and swine flu. Leading themes include: infectious disease and its impact on society; the development of public health measures; the role of medical ethics; the genre of plague literature; the social reactions of mass hysteria and violence; the rise of the germ theory of disease; the development of tropical medicine; a comparison of the social, cultural, and historical impact of major infectious diseases; and the issue of emerging and re-emerging diseases.

Course Structure:
This Yale College course, taught on campus twice per week for 50 minutes, was recorded for Open Yale Courses in Spring 2010.