Obaidat Mohammad M, Salman Alaa E Bani
Department of Veterinary Pathology and Public Health, Faculty of Veterinary Medicine, Jordan University of Science and Technology, Irbid, Jordan.
J Vet Diagn Invest. 2019 May;31(3):481-484. doi: 10.1177/1040638719843171. Epub 2019 Apr 11.
We estimated the seroprevalence of, and associated risk factors for, anaplasmosis in dairy cows, sheep, and goats in all regions of Jordan. Apparently healthy animals from 135 farms (31 cow, 68 sheep, and 36 goat farms) were tested for Anaplasma spp. antibodies by a competitive ELISA. At the farm level, 36%, 94%, and 94% of cow, sheep, and goat farms, respectively, were seropositive for Anaplasma spp. At the individual animal level, 22%, 89%, and 82% of the tested cows, sheep, and goats, respectively, were seropositive, which demonstrates widespread and high seroprevalence of Anaplasma spp. in dairy farms in Jordan. Seroprevalence did not vary between regions. Using the Fisher exact test, there was a significant association between high seroprevalence and recent abortion in small ruminants. There is an urgent need for further investigation of this disease, and the potential role of Anaplasma spp. in abortions, on dairy farms in Jordan.
我们估算了约旦所有地区奶牛、绵羊和山羊无形体病的血清阳性率及相关风险因素。对来自135个养殖场（31个奶牛场、68个绵羊场和36个山羊场）的外观健康动物进行了无形体属抗体的竞争ELISA检测。在养殖场层面，奶牛场、绵羊场和山羊场中无形体属血清阳性的比例分别为36%、94%和94%。在个体动物层面，检测的奶牛、绵羊和山羊中血清阳性的比例分别为22%、89%和82%，这表明约旦奶牛场中无形体属广泛流行且血清阳性率很高。各地区之间血清阳性率无差异。采用Fisher精确检验，小反刍动物中高血清阳性率与近期流产之间存在显著关联。迫切需要对约旦奶牛场的这种疾病以及无形体属在流产中的潜在作用进行进一步调查。
