cover image Plague Time: How Stealth Infections Cause Cancer, Heart Disease, and Other Deadly Ailments

Plague Time: How Stealth Infections Cause Cancer, Heart Disease, and Other Deadly Ailments

Paul W. Ewald. Free Press, $25 (288pp) ISBN 978-0-684-86900-1

Could breast cancer be caused, not by genes, but by a pathogen passed to humans from mice? Very possibly, according to Amherst College biology professor Ewald (Evolution of Infectious Disease) in this controversial page-turner that's certain to garner attention. In a cogent defense of our evolutionarily selected genes, Ewald proposes that the true culprits behind chronic ailments and even mental disorders are pathogens. He propels his argument by noting the ""biases of human thought"" that inhibited scientific growth in the 19th century (when the notion of microbes was first rejected) and those that are, he believes, stifling the research of infectious diseases today. For example, the infectious origin of peptic ulcers wasn't recognized until the mid-1980s, more than 30 years after physicians demonstrated the effectiveness of antibacterial agents in ulcer patients. The reason for this ""scientific paralysis"" lies in the prevalent misconception that most infectious diseases are like the common cold, acute yet ephemeral rather than chronic. Challenging this popular mindset, Ewald thoroughly examines the calculated attack strategies of a number of chronic, sexually transmitted diseases (such as herpes, syphilis and AIDS). In contrast to the complex task of determining disease origins, however, Ewald's solutions are surprisingly simple: clean water, safe sex, home care when you're ill, awareness of pathogen evolution and more funding. The world of infectious diseases, Ewald makes clear, continues to thrive--and anyone involved in the study or practice of medicine and any scientifically literate reader curious about the origins of disease will want to read this challenging work. Author tour. (Nov. 14)