Kumsa Bersissa
Addis Ababa University, Department of Parasitology, College of Veterinary Medicine, P.O Box 34, Bishoftu, Ethiopia.
Vet Anim Sci. 2019 Jan 31;7:100050. doi: 10.1016/j.vas.2019.100050. eCollection 2019 Jun.
Cystic echinococcosis, caused by larval stages of the tapeworm is responsible for hydatid cysts in the lungs, liver and other organs of intermediate hosts. A cross-sectional Abattoir study was conducted from October 2015 to May 2016 at Addis Ababa Abattoir enterprise, Ethiopia. For this purpose a total of 1209 cattle were examined using the classical meat inspection procedure for the presence of hydatid cysts. An overall prevalence of 21% (254/1209) of hydatid cyst was recorded in cattle slaughtered at Addis Ababa Abattoir enterprise. The prevalence of hydatid cyst was statistically significantly higher (P<0.05) in cattle with the age group of >6 years than those cattle with all other age categories. The study showed that lungs and livers were the most affected organs of cattle. Significantly ( < 0.05) higher overall number of hydatid cysts were observed in the lungs (63.9%; 1324/2071) than in the livers (35.4%; 734/2071). The study revealed the presence of an overall of 84.1% (333/396) sterile, 12.2% (48/396) calcified and 4.3% (17/396) fertile cysts. Of the total of 17 fertile hydatid cysts tested for viability, 17.6% (3/17) viable and 82.3% (14/17) nonviable cysts were observed. Overall, findings of the present study showed the widespread occurrence of hydatid cysts in internal organs of cattle that possibly incur significant economic losses through condemnation of edible organs rendering unfit for human consumption. Molecular studies on the role of intermediate host species, genotypes of , zoonotic impact and economic significance of echinococcosis are needed in different parts of Ethiopia.
囊型包虫病由绦虫的幼虫阶段引起，可在中间宿主的肺、肝和其他器官中形成包虫囊肿。2015年10月至2016年5月在埃塞俄比亚亚的斯亚贝巴屠宰场企业进行了一项横断面屠宰场研究。为此，共对1209头牛进行了检查，采用经典的肉类检验程序检测包虫囊肿的存在。在亚的斯亚贝巴屠宰场企业屠宰的牛中，包虫囊肿的总体患病率为21%（254/1209）。6岁以上年龄组的牛中包虫囊肿的患病率在统计学上显著高于所有其他年龄组的牛（P<0.05）。研究表明，肺和肝是牛受影响最严重的器官。在肺中观察到的包虫囊肿总数（63.9%；1324/2071）显著高于肝（35.4%；734/2071）（P<0.05）。研究发现，总体上84.1%（333/396）的囊肿为无菌性，12.2%（48/396）为钙化性，4.3%（17/396）为有活性的。在总共17个检测活力的有活性包虫囊肿中，观察到17.6%（3/17）为有活力的，82.3%（14/17）为无活力的囊肿。总体而言，本研究结果表明，牛内脏器官中广泛存在包虫囊肿，这可能通过谴责不适于人类食用的可食用器官而造成重大经济损失。埃塞俄比亚不同地区需要开展关于中间宿主物种的作用、基因型、人畜共患病影响和包虫病经济意义的分子研究。
