Origin and Evolution of Viruses

Are infectious diseases caused by novel entities, viruses that have rapidly evolved into more pathogenic forms, or viruses that have crossed species divides and become more virulent in their alternative host? These questions and how new diseases such as AIDS emerged have prompted renewed interest in the ways viruses originated and co-evolved with their hosts.Origin and Evolution of Viruses presents a full and clear description of general viral concepts and specific viral systems, and provides an