The Chickens Fight Back : Pandemic Panics and Deadly Diseases That Jump from Animals to HumansEmerging diseases like mad cow, SARS, and avian flu are for the moment, at least far more prevalent in animals than in humans. Still, the knowledge that measles, TB, and smallpox were at one time emerging diseases that eventually made a permanent, and quite deadly, jump to humans gives epidemiologists pause. This book examines the various groups of animal diseases, explains what attracts them to the human population from food to sex to living