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首页> 外文期刊>Parasitology Research >Molecular evidence of spotted fever group rickettsiae and Anaplasmataceae from ticks and stray dogs in Bangladesh
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Molecular evidence of spotted fever group rickettsiae and Anaplasmataceae from ticks and stray dogs in Bangladesh

机译：孟加拉国s和流浪狗发现发热立克次体和无形科的分子证据

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摘要

Emerging tick-borne diseases (TBDs) are important foci for human and animal health worldwide. However, these diseases are sometimes over looked, especially in countries with limited resources to perform molecular-based surveys. The aim of this study was to detect and characterize spotted fever group (SFG) rickettsiae and Anaplasmataceae in Bangladesh, which are important tick-borne pathogens for humans and animals worldwide. A total of 50 canine blood samples, 15 ticks collected from dogs, and 154 ticks collected from cattle were screened for the presence of SFG rickettsiae and Anaplasmataceae using molecular-based methods such as PCR and real-time PCR. The sequence analysis of the amplified products detected two different genotypes of SFG rickettsiae in ticks from cattle. The genotype detected in Rhipicephalus microplus was closely related to Rickettsia monacensis, while the genotype detected in Haemaphysalis bispinosa was closely related to Rickettsia sp. found in Korea and Japan. Anaplasma bovis was detected in canine blood and ticks (Rhipicephalus sanguineus and H. bispinosa). Unexpectedly, the partial genome sequence of Wolbachia sp., presumably associated with the nematode Dirofilaria immitis, was identified in canine blood. The present study provides the first molecular evidence of SFG rickettsiae and A. bovis in Bangladesh, indicating the possible emergence of previously unrecognized TBDs in this country.
机译：新兴的tick传播疾病（TBD）是全球人类和动物健康的重要焦点。但是，有时会忽略这些疾病，尤其是在执行基于分子的调查的资源有限的国家中。这项研究的目的是检测和鉴定孟加拉国的斑点发烧组立克次体和无形科，它们是全世界人类和动物的重要tick传播病原体。使用基于分子的方法（例如PCR和实时PCR），筛选了SFG立克次体和无形科中总共50种犬血样本，15只狗的tick虫和154只牛的tick虫。扩增产物的序列分析在牛tick中检测到两种不同基因型的立克次体立克次体。 Rhipicephalus microplus中检测到的基因型与莫里克立克次体密切相关，而双血吸虫中检出的基因型与Rickettsia sp密切相关。在韩国和日本发现。在犬的血液和壁虱（Rhipicephalus sanguineus和H. bispinosa）中检测到牛无浆膜。出乎意料的是，在犬血中鉴定出Wolbachia sp。的部分基因组序列，推测与线虫Dirofilaria免疫炎有关。本研究提供了孟加拉国SFG立克次氏菌和牛A.bovis的第一个分子证据，表明该国可能出现了以前未被认识的TBD。

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