Now in two conveniently sized volumes, Principles of Virology , 3rd Edition, is completely revised and updated to reflect important advances in the field. The textbook continues to fill the gap between introductory texts and advanced reviews of major virus families. These two volumes provide upper-level undergraduates, graduate students, and medical students with a state-of-the-art introduction to all aspects of virology. The third edition retains the essential organization and much-praised features of the first two editions. The two books focus on concepts and principles and together present a comprehensive treatment from molecular biology to pathogenesis and control of viral infections. Written in an engaging style and generously illustrated with over 600 full-color illustrations, these accessible volumes offer detailed examples to illustrate common principles, specific strategies to ensure replication and propagation of viruses, and a crucial overview of the current state of research in virology. The two volumes are divided into chapters that focus on specific topics rather than individual virus families to help students understand common themes across the spectrum of these families. Drawing on the extensive teaching experience of each of its distinguished authors, Principles of Virology illustrates why and how animal viruses are studied and demonstrates how the knowledge gained from such model viruses can be used to study viral systems that are still relatively unknown. A thorough introduction to principles of viral pathogenesis, a broad view of viral evolution, a discussion of how viruses were discovered, and an explanation of the history of the discipline of virology are also provided. A variety of text boxes highlight key experiments, background material, caveats, and much more. New in the Third Edition Organized into two convenient-to-carry and beautifully illustrated paperback volumes-Volume I ( Molecular Biology ) and Volume II ( Pathogenesis and Control )-each with its own glossary and appendix Volumes I and II may be purchased separately or together in a bundle at a reduced per-volume price The two stand-alone volumes illustrate the strategies by which all viruses are propagated, how infections spread, and how they are maintained in populations Volume I features the molecular processes that take place in an infected cell Volume II offers a concise treatment of the interplay between viruses and their host organisms Introduces new chapters that discuss principles of infection of hosts and populations as well as a basic introduction to the mathematics of viral growth Key Features Focuses on specific topics rather than individual viruses Teaches unifying concepts and addresses problems common to the propagation of every virus Defines the finite number of viral genome structures and replication and expression strategies Illuminates the principles of host defense and virus offense Provides insight into the origins of viral disease and introduces the challenges inherent in developing treatments Introduces principles governing evolving and emerging viral infections Stimulates discussion, provokes questions, and shows students that there are many questions still outstanding Written by four distinguished scientists with active virology laboratories Over 600 full-color illustrations