Ruth G R, Reed D E, Daley C A, Vorhies M W, Wohlgemuth K, Shave H
J Am Vet Med Assoc. 1977 Nov 1;171(9):913-7.
Malignant catarrhal fever was diagnosed in 3 herds of American bison (Bison bison) in South Dakota from 1973 to 1976. Clinical signs included depression, nasal and ocular discharge, conjunctivitis and keratitis, and diarrhea. Herd morbidity ranged from 3 to 53.8%, and mortality was 100%. At necropsy, ulcerative lesions were found throughout the alimentary tract, trachea, and bronchi. Microscopically, necrotizing vasculitis without thrombosis was found in virtually every organ examined.
1973年至1976年期间，在南达科他州的3群美洲野牛（Bison bison）中诊断出恶性卡他热。临床症状包括抑郁、鼻眼分泌物、结膜炎和角膜炎以及腹泻。牛群发病率在3%至53.8%之间，死亡率为100%。尸检时，在整个消化道、气管和支气管中发现溃疡性病变。显微镜检查发现，几乎在每个检查的器官中都有无血栓形成的坏死性血管炎。
