This book will be concerned with the epidemiological aspects of quine viral diseases. The African horse sickness (AHSV) mainly causes pulmonary, and cardiac forms with high morbidity and mortality rates in Africa. The equine influenza virus (EIV) is found all over the world and results in respiratory signs. The equine viral arteritis (EVA) has low morbidity and mortality rates and is mainly found in the Americas and Europe, its significance is due to reproductive problems as abortion in mares and subfertility in stallions. The Equine infectious anemia virus (EIAV) has low morbidity and...