In this fully revised third edition of the 1998 original, Jeanette Farrell tells the gripping stories of mankind's struggles against the deadliest diseases in human history—including malaria, leprosy and cholera—updated to reflect new medical and social developments such as the continuing ravages of AIDS around the world, the bioterror threat posed by smallpox eradication, and an all-new chapter on the Ebola crisis. Illustrated with more than fifty reproductions of photographs, newspaper cartoons, public health posters, and the like, Invisible Enemies is an intense and intriguing mix of history, biography, and biology.A Scientific American Young Readers Book Award WinnerA Bulletin Blue Ribbon Book