阿尔及利亚的囊性棘球蚴病:牛作为宿主在棘球蚴通过狗向人类传播的动态过程中的作用。

Q4 Medicine
M C Benchikh El Fegoun, K Kohil, M Benguesmia, S Gouasmia, M Aissi
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引用次数: 1

摘要

在北非,颗粒棘球绦虫主要在狗(DH)和羊(IH)之间以一种共生循环的方式传播,但牛等其他动物通常更容易感染棘球绦虫囊肿,但它们通过狗对人类污染的潜在作用尚不清楚。本研究的目的是评估阿尔及利亚中部和东部两个屠宰场反刍动物(牛和羊)中包虫病的流行率和生育率。确定牛中囊肿的频率和繁殖能力将评估该物种与绵羊一起在阿尔及利亚细粒绦虫流行病学周期中的参与程度。在本研究中,估计在El Harrach和Souk Ahras屠宰场屠宰的反刍动物中所有物种的患病率分别为4.9%和10%。按物种分布的流行率表明,牛的侵染率高于羊:在El Harrach和Souk Ahras的屠宰场分别为6%对3.9%和37%对4.7%。调查结果显示,与绵羊相比,牛的囊肿生育率相对较低:在El Harrach和Souk Ahras两个屠宰场,牛的囊肿生育率分别为13.8%对43.7%和33.3%对71.4%。牛包虫病的低生育率可以解释为该物种的适应性差,该物种为狭义颗粒包虫病(E. granulosus sensu stricto),以前通过分子分析在阿尔及利亚收集的所有牛包虫病样本中发现。综上所述,在阿尔及利亚发生的囊性包虫病流行病学中,感染严格感颗粒绦虫的牛只在低生育率中起次要作用。相反,它是囊性包虫病在流行地区持续感染的一个指标。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Cystic Echinococcosis in Algeria: the Role of Cattle as Reservoirs in the Dynamics of Transmission of Echinococcus granulosus to Humans via Dogs.

In North Africa, the parasite Echinococcus granulosus is transmitted in a synanthropic cycle evolving mainly between dogs (DH) and sheep (IH), but other animals like cattle are most often found to be more infested with hydatid cysts but their potential role in human contamination via dogs is unknown. The purpose of this study is to assess the prevalence and fertility rates of hydatid cysts in ruminants (cattle and sheep) in two slaughterhouses in central and eastern Algeria. Determining the frequency and fertility of cysts in cattle will assess the degree of involvement of this species, alongside sheep, in the epidemiological cycle of E. granulosus in Algeria. In the present study, prevalence rates were estimated at 4.9% and 10% in slaughtered ruminants, all species combined at the slaughterhouses of El Harrach and Souk Ahras, respectively. The distribution of the prevalence by species indicates higher infestation rates in cattle compared to sheep: 6% vs 3.9% and 37% vs 4.7% in the slaughterhouses of El Harrach and Souk Ahras, respectively. The survey results showed relatively low cyst fertility rates in cattle compared to sheep: 13.8% vs 43.7% and 33.3% vs 71.4% in the two slaughterhouses, El Harrach and Souk Ahras, respectively. The low fertility rate of cysts in cattle can be explained by a poor adaptation of the species, E. granulosus sensu stricto, previously identified by molecular analysis in all samples of hydatid cysts collected from cattle in Algeria. In conclusion, cattle infested with E. granulosus sensu stricto, with low fertility rates, play a minor role in the epidemiology of cystic echinococcosis in Algeria. It is rather an indicator of the persistence of cystic echinococcosis infection in endemic regions.

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期刊介绍: Le Bulletin de la Société de pathologie exotique et la société savante (SPE) dont il est la vitrine ont été créés en 1908 par Alphonse Laveran. Destiné, dans un premier temps, à servir de support à la publication des travaux des sociétaires présentés en séance sous forme de communication ou de mémoire, ce périodique est devenu, au fil du temps, une revue internationale francophone multidisciplinaire, ouverte à tous les médecins, vétérinaires, anthropologues et chercheurs travaillant dans le domaine de la médecine tropicale humaine et animale et de la santé publique dans les pays en voie de développement.
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