Invisible Enemies: Stories of Infectious Diseases by Jeanette Farrell. Filled with fascinating facts, this book that focuses on smallpox, leprosy, plague, tuberculosis, malaria, cholera, and AIDS is written in a clear and fun style that makes the most complex matters of the disease understandable.
The Malaria Capers by Robert Desowitz. The author traces the history of malaria and questions why decades of research have yielded no results in a vaccine against malaria. A bit on the medical side sometimes, but includes story-telling accounts of unsung heroes in the battle against the disease. A real eye-opener on what efforts are being made (and not being made) to combat this global crisis!