Agerholm J S, Barr B C
Danish Veterinary Laboratory, Department of Pathology and Epidemiology, Copenhagen.
Acta Vet Scand. 1994;35(4):461-4. doi: 10.1186/BF03548325.
During recent years protozoa of the genus have been identified as a major cause of bovine abortions world wide ( 1991, 1994, 1991, 1994). A presumptive diagnosis of abortion can be made on the foetal histopathology as infected foetuses have a distinctive pattern of multifocal necrotizing and non-suppurative encephalitis often with an accompanying nonsuppurative myocarditis and a varying degree of focal inflammation in other organs ( 1990, 1991). However, confirming the diagnosis of abortion requires detection of protozoa in foetal tissues that react positively by immunohistochemistry with specific antisera ( 1990, 1991).
近年来,该属原生动物已被确定为全球范围内牛流产的主要原因(1991年、1994年、1991年、1994年)。由于受感染胎儿具有多灶性坏死性和非化脓性脑炎的独特模式,常伴有非化脓性心肌炎以及其他器官不同程度的局灶性炎症,因此可根据胎儿组织病理学做出流产的初步诊断(1990年、1991年)。然而,确诊流产需要在胎儿组织中检测到原生动物,这些原生动物通过免疫组织化学与特异性抗血清反应呈阳性(1990年、1991年)。