I need help with a Philosophy question. All explanations and answers will be used to help me learn.

Readings:

-Clendening, Logan. 1942. “XXVII: Smallpox.” In Source Book of Medical History, 291-300. New York: Dover Publications.

-Snow, John. 1854. “The Principles on Which the Treatment of Cholera Should Be Based.” The Lancet63.1587: 109.

-Leung, Angela Ki Che. 2011. “Variolation and Vaccination in Late Imperial China, ca. 1570-1911.” In History of Vaccine Development, edited by S. A. Plotkin, 5-12. New York: Springer.

No Bibliography Page needed. There are three questions and each one has its own reading assigned to it. Answer should be around two paragraphs but thoroughly answering each question.