Fenner's veterinary virology / edited by N. James MacLachlan, BVSc, PhD, Dip ACVP, Distinguished Professor, Department of Pathology, Microbiology and Immunology, School of Veterinary Medicine, University of California, Davis, California, USA, and Extraordinary Professor, Department of Veterinary Tropical Diseases, Faculty of Veterinary Science, University of Pretoria, Onderstepoort, Republic of South Africa, Edward J. Dubovi, MS, PhD, Dip ACVM (Hon), Director, Virology Section, Animal Health Diagnostic Center, Department of Population Medicine and Diagnostic Sciences, College of Veterinary Medicine, Cornell University, Ithaca, New York, USA ; associate editors, Stephen W. Barthold, DVM, PhD, Dip ACVP, Distinguished Professor Emeritus, Department of Pathology, Microbiology and Immunology, School of Veterinary Medicine, University of California, Davis, California, USA, David E. Swayne, DVM, PhD, Dip ACVP, Dip ACPV, Center Director, USDA/Agricultural Research Services, Exotic and Emerging Avian Viral Diseases Research Unit, Southeast Poultry Research Laboratory, Athens, Georgia, USA, James R. Winton, BA, PhD, Chief, Fish Health Section, United States Geological Survey, Western Fisheries Research Center, Seattle, Washington, USA.