Dal Pozzo Fabiana, Saegerman Claude, Thiry Etienne
Department of Infectious and Parasitic Diseases, Virology and Viral Diseases, Faculty of Veterinary Medicine, University of Liège, B-4000 Liège, Belgium.
Vet J. 2009 Nov;182(2):142-51. doi: 10.1016/j.tvjl.2009.05.004. Epub 2009 May 27.
Bluetongue virus (BTV) is an arthropod-borne virus infecting domestic and wild ruminants. Infection in cattle is commonly asymptomatic and characterised by a long viraemia. Associated with the emergence and the recrudescence of BTV serotype 8 (BTV-8) in Northern and Central Europe, remarkable differences have been noticed in the transmission and in the clinical expression of the disease, with cattle showing clinical illness and reproductive disorders such as abortion, stillbirth and fetal abnormalities. Several investigations have already indicated the putative ability of the European BTV-8 strain to cross the bovine placenta and to cause congenital infections. The current epidemiological and pathological findings present an unusual picture of the disease in affected bovines.
蓝舌病病毒（BTV）是一种节肢动物传播的病毒，可感染家养和野生反刍动物。牛感染后通常无症状，其特征是病毒血症持续时间长。随着BTV血清型8（BTV-8）在北欧和中欧的出现和复发，人们注意到该病在传播和临床表现方面存在显著差异，牛出现临床疾病和生殖障碍，如流产、死产和胎儿异常。多项调查已表明欧洲BTV-8毒株可能具有穿过牛胎盘并导致先天性感染的能力。目前的流行病学和病理学研究结果呈现出受感染牛群中该病的异常情况。
