Preface. Introduction. Authors. Abbreviations. DNA Viruses. Poxviridae. 1. Poxivirus infections (F. Fenner).Herpesviridae. 2. Equine rhinopneumonitis and equine abortion (Equine herpesviruses 4 and 1) (M.J. Studdert, B.C. Crabb) 3. Equine coital axanthema (Equine herpesvirus 3) (M.J. Studdert). 4. Equine herpesvirus 2 and 5 infections (G.F. Browning, C.T. Agius). 5. Pseudorabies (Aujeszky's disease) (M.J. Studdert). Adenoviridae. 6. Equine adenovirus infections (M.J. Studdert).Papovaviridae. 7. Equine and bovine papilloma virus infections (B.A. Vanselow, P.B. Spradbrow). RNA Viruses. Reoviridae. 8. Reovirus infections (G.F. Browning). 9. African horse sickness (W.W. Laegreid). 10. Equine encephalosis (W.W. Laegreid). 11. Equine rotavirus infections (G.F. Browning). Togaviridae and Flaviviridae. 12. Japanese, Western, Eastern and Venezuelan Encephalitides (C.H. Calisher, T.E. Walton). 13. Getah virus infection (C.H. Calisher, T.E. Walton). 14. Louping ill (M.J. Studdert). Arteriviridae. 15. Equine arteritis (A.A.F. de Vries, P.J.M. Rottier, M.C. Horzinek). Coronaviridae. 16. Coronavirus infections (M.J. Studdert). 17. Torovirus infections (M. Weiss, M.C. Horzinek). Picornaviridae. 18. Equine rhinovirus infections (M.J. Studdert). Mononegavirales - Paramyxoviridae. 19. Parainfluenza virus infections (M.J. Studdert). 20. Equine morbillivirus pneumonia (acute equine respiratory syndrome) (H.A. Westbury, P.K. Murray). 21. Borna disease. H. Becht, J. Richt). Rhabdoviridae. 22. Rabies (M. Aubert). 23. Vesicular stomatitis (G.J. Letchworth).Orthomyxviridae. 24. Equine influenza (J.A. Mumford, D. Hannant). Retroviridae - Lentivirinae. 25. Equine infectious anemia (R.F. Cook, C.J. Issel, R.C. Montelaro). Short reviews. 26. Postvaccinal hepatitis (M.J. Studdert). 27. Epidemiology and control of equine virus diseases (D.G. Powell). Appendix. Subject Index.