PDF(Pubmed)
Abstract：
Recently, there have been epidemics of human cystic echinococcosis (CE) and alveolar echinococcosis (AE) in Kyrgyzstan. This study investigated 2 districts for the presence of Echinococcus granulosus s.l. and Echinococcus multilocularis eggs; species identity was confirmed by polymerase chain reaction in dog feces and the level of environmental contamination with parasite eggs in 2017–2018 was also investigated. In the Alay district 5 villages with a high reported annual incidence of AE of 162 cases per 100 000 and 5 villages in the Kochkor district which had a much lower incidence of 21 cases per 100 000 were investigated. However, the proportion of dog feces containing E. granulosus s.l. eggs was ~4.2 and ~3.5% in Alay and Kochkor respectively. For E. multilocularis, the corresponding proportions were 2.8 and 3.2%. Environmental contamination of Echinococcus spp. eggs was estimated using the McMaster technique for fecal egg counts, weight and density of canine feces. The level of environmental contamination with E. multilocularis eggs was similar at 4.4 and 5.0 eggs per m2 in Alay and Kochkor respectively. The corresponding values for E. granulosus s.l. were 8.3 and 7.5 eggs per m2. There was no association between village or district level incidence of human AE or CE and the proportion of dog feces containing eggs of Echinococcus spp. or the level of environmental contamination. Increased contamination of taeniid eggs occured in the autumn, after the return of farmers with dogs from summer mountain pastures.
摘要：
最近,在吉尔吉斯斯坦，人类囊型包虫病（CE）和泡型包虫病（AE）流行。这项研究调查了2个地区的细粒棘球蚴和多房棘球蚴卵的存在;通过狗粪便中的聚合酶链反应确认了物种身份，并调查了2017-2018年寄生虫卵的环境污染水平。在Alay地区，调查了5个每年报告的AE发病率较高的村庄，即每100000个村庄中162例，而Kochkor地区的5个村庄的发病率则低得多，即每100000个村庄中21例。然而,含有S.granulosuss.l.卵的狗粪便比例在Alay和Kochkor分别为〜4.2和〜3.5％。对于多房性大肠杆菌，相应的比例为2.8％和3.2％。棘球蚴属的环境污染。使用McMaster技术估算鸡蛋的粪便卵数，犬类粪便的重量和密度。在Alay和Kochkor，多房性大肠杆菌卵的环境污染水平相似，分别为每平方米4.4和5.0个卵。E.granulosuss.l.的相应值是8.3和7.5蛋/m2。人类AE或CE的村庄或地区水平发生率与含有棘球蚴卵的狗粪便的比例之间没有关联。或环境污染的程度。秋季出现了对大黄鱼卵的污染增加，农民带着狗从夏季山区牧场返回后。
