Singh Harsimran, Aulakh R S, Sharma Rajnish, Singh B B
School of Public Health and Zoonoses, Guru Angad Dev Veterinary and Animal Sciences University (GADVASU), Ludhiana, Punjab India.
Sydney School of Veterinary Science, Faculty of Science, The University of Sydney, 425 Werombi Road, Camden, NSW 2570 Australia.
J Parasit Dis. 2020 Sep;44(3):521-527. doi: 10.1007/s12639-020-01223-7. Epub 2020 Apr 21.
Cystic echinococcosis is an important parasitic zoonosis across the globe. The disease is caused by sensu lato. Free access of dogs to the disposed of bovine carcasses is an important conducive factor for the persistence of in the environment, and thus, stray dogs play a critical role in the disease transmission in developing countries including India. There is lack of information on the status of in the disposed of bovine carcasses in India; however, this information would be helpful to plan future strategies and policies to control this parasite. We examined 85 bovine carcasses from the 7 selected carcasses disposal sites in Punjab. During the postmortem, internal organs were examined for the presence of hydatid cysts. Molecular characterization of spp. was performed by PCR followed by sequencing of partial COI gene. We report 21% (18/85) prevalence of hydatidosis in dispose of bovine carcasses. Age was reported as the significant risk factor (Chi square = 22.5, df = 2, p = 0) for hydatidosis in the studied population and this might be due to higher cumulative exposure to the environmental parasitic stage ( eggs) with increase in age. Phylogenetic analysis showed that G1 (predominantly) and G3 strains of are circulating in bovine population in Punjab. Further, studies are needed to determine the strains of circulating in the stray dogs. Measures and policies to combat this problem in India should involve one health approach: a collaborative effort of medical and veterinary physicians.
囊型包虫病是一种在全球范围内重要的寄生虫人畜共患病。该疾病由细粒棘球绦虫复合种引起。狗能够自由接触被丢弃的牛尸体是该绦虫在环境中持续存在的一个重要促成因素，因此，流浪狗在包括印度在内的发展中国家的疾病传播中起着关键作用。在印度，关于被丢弃牛尸体中细粒棘球绦虫的状况缺乏相关信息；然而，这些信息将有助于制定未来控制这种寄生虫的战略和政策。我们检查了旁遮普邦7个选定的尸体处理地点的85头牛尸体。在尸检过程中，检查内部器官是否存在包虫囊肿。通过聚合酶链反应（PCR）对细粒棘球绦虫进行分子鉴定，随后对部分细胞色素氧化酶亚基I（COI）基因进行测序。我们报告在被丢弃的牛尸体中包虫病的患病率为21%（18/85）。在研究人群中，年龄被报告为包虫病的显著风险因素（卡方检验=22.5，自由度=2，p=0），这可能是由于随着年龄增长，对环境中寄生虫阶段（虫卵）的累积暴露增加。系统发育分析表明，细粒棘球绦虫的G1（主要）和G3菌株在旁遮普邦的牛群中传播。此外，需要进一步研究以确定在流浪狗中传播的细粒棘球绦虫菌株。在印度应对这一问题的措施和政策应涉及“同一健康”方法：医学和兽医的共同努力。
