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首页> 外文期刊>Parasitology >Detection of potentially human infectious assemblages of Giardia duodenalis in fecal samples from beef and dairy cattle in Scotland
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Detection of potentially human infectious assemblages of Giardia duodenalis in fecal samples from beef and dairy cattle in Scotland

机译：苏格兰牛肉和奶牛粪便样品中患有人体传染性组装的潜在人类传染性组合

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摘要

This study aimed to determine the prevalence and assemblages of Giardia duodenalis present in Scottish beef and dairy cattle at different ages, to try to ascertain if cattle could play a role in the spread of zoonotic assemblages of Giardia. A total of 388 fecal samples (128 beef and 253 dairy, seven of unknown breed) were collected from 19 farms in Scotland. Samples were sub-divided by host age, 1, 2, 3, 4, 5 and 6, 7–24 and ?25 weeks. DNA was extracted and tested by PCR to detect G. duodenalis DNA. Of the 388 samples, 126 tested positive, giving an overall prevalence of 32.5%, with positive samples being observed in all age groups tested. The prevalence in dairy cattle was 44.7% (113/235), which was significantly higher (P < 0.001) than the prevalence in beef cattle 10.1% (13/128). Sequence analysis demonstrated the presence of assemblage E (77.2%, sequence types E-S1–E-S5), assemblage B (18.2%) and assemblage A (sub-assemblages AI-AII) (4.6%). These data demonstrate that G. duodenalis is found routinely in both dairy and beef cattle throughout Scotland; the presence of assemblages A and B also indicates that cattle may play a role in the spread of potentially zoonotic assemblages of Giardia.
机译：本研究旨在确定苏格西亚牛肉和奶牛在不同年龄的奶牛牛的患病率和组装，试图确定牛是否可以在贾尼亚的动物园繁殖中发挥作用。从苏格兰的19个农场收集了总共388个粪便样本（128个牛肉和253个乳制品，其中七种未知品种）。将样品分除宿主年龄，1,2,3,4,5和6,7-24和25周。通过PCR提取并测试DNA以检测G. Duodenalis DNA。在388个样品中，126个测试阳性，总体患病率为32.5％，在所有年龄组中观察到阳性样品。乳制牛的患病率为44.7％（113/235），比牛肉牛的患病率显着更高（p <0.001），10.1％（13/128）。序列分析证明了组合E的存在（77.2％，序列类型E-S1-E-S5），组合B（18.2％）和组装A（亚组件Ai-AII）（4.6％）。这些数据表明，G. Duodenalis在苏格兰的乳制品和牛肉中常规地发现;组合A和B的存在还表明牛可能在吉亚迪亚的潜在动物园组合的扩散中发挥作用。

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