New epidemics such as AIDS and "mad cow" disease have dramatized the need to explore the factors underlying rapid viral evolution and emerging viruses. This comprehensive volume is the first to describe this multifaceted new field. It places viral evolution and emergence in a historical context, describes the interaction of viruses with hosts, and details the advances in molecular biology and epidemiology that have provided the tools necessary to track developing viral epidemics and to detect new viruses far more successfully than could be done in the recent past. This unique book also...