Читать книгу Farm Animal Medicine and Surgery - Graham R Duncanson - Страница 101

This highly contagious disease is caused by an Aphthovirus. There are seven immunologically distinct serotypes; A, O, C, Asial, South African Type (SAT) 1, 2 and 3. The signs will vary markedly in severity with the strain of virus, the breed of animal and the type of husbandry. The earliest signs are vesicles -fluid-filled sacs within the epithelium on the tongue, buccal mucosa and coronary band. There is marked excess salivation, lameness and pyrexia. There are vaccines available for all serotypes.