Braae Uffe Christian, Kabululu Mwemezi, Nørmark Michelle Elisabeth, Nejsum Peter, Ngowi Helena Aminel, Johansen Maria Vang
Section for Parasitology and Aquatic Diseases, Department of Veterinary Disease Biology, Faculty of Health and Medical Sciences, University of Copenhagen, Dyrlægevej 100, DK-1870, Frederiksberg C, Denmark.
Tanzania Livestock Research Institute (TALIRI), Uyole, P.O. Box 6191, Mbeya, Tanzania.
Trop Anim Health Prod. 2015 Dec;47(8):1523-30. doi: 10.1007/s11250-015-0892-6. Epub 2015 Jul 26.
Few studies have been carried out in Africa to estimate the prevalence of Taenia hydatigena. With the aim to determine the prevalence of T. hydatigena in slaughtered pigs and small ruminants (goats and sheep) in Mbeya, Tanzania, two cross-sectional surveys were carried out investigating pigs in April to May 2014 and small ruminants in September 2012. In total, 243 pigs were examined post-mortem for T. hydatigena cysts which were found in 16 (6.6 %) pigs. The majority (80 %) of cysts were found on the omentum and the rest on the liver (20 %), all on the visceral surface. Two pigs were also found infected with Taenia solium but showed no signs of other infections. A total of 392 goats and 27 sheep were examined post-mortem, and the prevalence of T. hydatigena was similar in goats and sheep with 45.7 and 51.9 %, respectively. DNA sequencing of the mitochondrial cytochrome c oxidase subunit 1 gene (cox1) from a subsample of metacestodes from goats and sheep confirmed the T. hydatigena infection. The prevalence found in small ruminants was comparable to other studies conducted in Africa, but for pigs, it is one of the highest recorded to date. The present study also confirms the occurrence of T. hydatigena and T. solium in pigs from Mbeya. Further studies are needed to determine the impact of T. hydatigena on production under sub-Saharan conditions and the financial consequences for smallholder farmers.
在非洲，针对泡状带绦虫患病率开展的研究较少。为了确定坦桑尼亚姆贝亚地区屠宰猪和小型反刍动物（山羊和绵羊）中泡状带绦虫的患病率，于2014年4月至5月对猪进行了两项横断面调查，并于2012年9月对小型反刍动物进行了调查。总共对243头猪进行了尸检，以检查泡状带绦虫囊肿，在16头（6.6%）猪中发现了囊肿。大多数（80%）囊肿位于大网膜，其余（20%）位于肝脏，均在内脏表面。还发现两头猪感染了猪带绦虫，但未表现出其他感染迹象。总共对392只山羊和27只绵羊进行了尸检，泡状带绦虫在山羊和绵羊中的患病率相似，分别为45.7%和51.9%。对来自山羊和绵羊的棘球蚴子样本的线粒体细胞色素c氧化酶亚基1基因（cox1）进行DNA测序，证实了泡状带绦虫感染。在小型反刍动物中发现的患病率与在非洲开展的其他研究相当，但对于猪而言，这是迄今为止记录到的最高患病率之一。本研究还证实了姆贝亚地区猪中存在泡状带绦虫和猪带绦虫。需要进一步开展研究，以确定泡状带绦虫在撒哈拉以南条件下对生产的影响以及对小农户的经济后果。
