Njenga M J, Munyua S J, Bwangamoi O, Kang'ethe E K, Mugera G M, Mutiga E R, Wamukoya J P
Faculty of Veterinary Medicine, University of Nairobi, Kabete, Kenya.
J S Afr Vet Assoc. 1999 Dec;70(4):151-3. doi: 10.4102/jsava.v70i4.784.
A preliminary survey on the prevalence of besnoitiosis in domestic ruminants in Kenya based on field and farm visits, clinical and post mortem examinations and histopathological examination of tissues and biopsies, showed that goats are the most affected, followed by cattle, while sheep were unaffected. Caprine besnoitiosis occurred in a continuous belt in 5 of the 8 provinces in Kenya stretching from the Coast, Eastern, North Eastern, Nairobi and the Rift Valley Provinces. Mandera, in the North Eastern Province, had the highest prevalence rate of 36%, followed by Kwale (35%), Isiolo (35%), Marsabit (33%), Wajir (28%), Nairobi (26%), Meru (24%), Garissa (21%), Taita Taveta (18%), Embu (17%), Kitui (9%), Machakos (7%), Laikipia (3%), Kajiado (2%) and Turkana and Elgeyo-Marakwet (1% each). In all flocks where the prevalence rates were over 6%, kids were observed to be affected. There were no significant differences (P < 0.05) between the prevalence rates in bucks and does (18% and 18.4, respectively), but kids were less (4%) affected. Bovine besnoitiosis was found only in the Tana River District, with an infection rate of 11%.
基于实地考察、农场走访、临床和尸检以及组织和活检的组织病理学检查，对肯尼亚家养反刍动物中贝斯诺虫病的流行情况进行的初步调查显示，山羊受影响最大，其次是牛，而绵羊未受影响。肯尼亚8个省份中的5个省份出现了山羊贝斯诺虫病的连续分布带，范围从沿海省、东部省、东北省、内罗毕省到裂谷省。东北省的曼德拉患病率最高，为36%，其次是夸莱（35%）、伊索洛（35%）、马萨比特（33%）、瓦吉尔（28%）、内罗毕（26%）、梅鲁（24%）、加里萨（21%）、泰塔塔韦塔（18%）、恩布（17%）、基图伊（9%）、马查科斯（7%）、莱基皮亚（3%）、卡贾多（2%）以及图尔卡纳和埃尔盖约-马拉奎特（均为1%）。在所有患病率超过6%的羊群中，均观察到幼羊受到影响。公羊和母羊的患病率（分别为18%和18.4%）之间没有显著差异（P<0.05），但幼羊受影响程度较低（4%）。牛贝斯诺虫病仅在塔纳河地区被发现，感染率为11%。
