Very Short Introductions: Brilliant, Sharp, Inspiring Infectious disease is a moving target: new diseases emerge every year, old diseases evolve into new forms, and ecological and socioeconomic upheavals change the transmission pathways that spread disease. But where does disease come from? How is it transmitted from one person to another? And why are some individuals more susceptible than others? In this Very Short Introduction, Marta Wayne and Benjamin Bolker address these questions through the lenses of ecology and evolution. Assessing the management of outbreaks of diseases such as influenza, HIV/AIDS, cholera, and COVID-19, they provide specific examples to illustrate why major diseases still threaten populations all over the world. ABOUT THE SERIES: The Very Short Introductions series from Oxford University Press contains hundreds of titles in almost every subject area. These pocket-sized books are the perfect way to get ahead in a new subject quickly. Our expert authors combine facts, analysis, perspective, new ideas, and enthusiasm to make interesting and challenging topics highly readable.