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首页> 外文期刊>Applied Microbiology >Transmission Dynamics of Bartonella sp. Strain OE 1-1 in Sundevall's Jirds (Meriones crassus)
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Transmission Dynamics of Bartonella sp. Strain OE 1-1 in Sundevall's Jirds (Meriones crassus)

机译：巴尔通体菌的传播动力学。 Sundevall's Jirds（Meriones crassus）中的OE 1-1菌株

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A high prevalence of Bartonella infection is found in many natural systems; however, the transmission dynamics leading to observations of these infections is not fully understood. The capability of Xenopsylla ramesis fleas to serve as competent vectors of Bartonella sp. OE 1-1 (a strain closely related to the zoonotic Bartonella elizabethae ) to Meriones crassus jirds was investigated. Na?ve X. ramesis fleas were placed for 72 h on na?ve jirds or jirds that were either experimentally or naturally infected with Bartonella sp. strain OE 1-1, after which they were placed on na?ve jirds. Postfeeding, 69 to 100% of the fleas collected from each Bartonella -positive jird contained Bartonella DNA, and all na?ve jirds became positive for Bartonella sp. OE 1-1 after infestation with the infected fleas. In addition, maternal transmission of Bartonella sp. OE 1-1 in jirds was tested by mating 5 Bartonella -positive and 5 na?ve female jirds with 10 na?ve male jirds in the absence of fleas. Fifteen offspring were delivered by each group. Cultures of blood drawn from all offspring on days 35 and 47 postdelivery were found to be negative for Bartonella . A single spleen sample from the offspring of a Bartonella -positive mother was found molecularly positive for Bartonella sp. OE 1-1. This study demonstrates that X. ramesis fleas are competent vectors of Bartonella sp. OE 1-1 to M. crassus jirds and indicates that maternal transmission is probably not the major transmission route from female jirds to their offspring. We suggest that the dynamics of Bartonella sp. OE 1-1 in the M. crassus jird population in nature is mostly dependent on its vectors.
机译：在许多自然系统中，巴尔通体感染的流行率很高。但是，尚未完全了解导致观察到这些感染的传播动力学。 Xenopsylla ramesis跳蚤作为Bartonella sp。的有效载体的能力。研究了对梅里昂龟的OE 1-1（一种与人畜共患病的Bartonella elizabethae密切相关的菌株）。将幼稚的X. ramesis跳蚤放在幼稚的jirds上，或实验性或自然感染了Bartonella sp。的jirds上放置72 h。菌株OE 1-1，然后将它们放在幼稚的jirds上。喂食后，从每个巴尔通体阳性菌体收集到的跳蚤中有69％至100％含有巴尔通体DNA，所有幼稚的菌体均对巴尔通体菌呈阳性。感染跳蚤侵染后的OE 1-1。此外，Bartonella sp。的母亲传播。在无跳蚤的情况下，通过将5个Bartonella阳性和5个幼稚的女性和10个幼稚的男性配对，对OE 1-1进行了测试。每组分娩了十五只后代。分娩后第35和47天从所有后代抽取的血液培养物对巴通体呈阴性。发现巴尔通体呈阳性母亲后代的单个脾脏样本对巴尔通体菌呈分子阳性。 OE 1-1。这项研究表明，X。ramesis跳蚤是Bartonella sp。的有效载体。 OE 1-1至C. crassus jirds，表明母本传播可能不是从女性jird到其后代的主要传播途径。我们建议Bartonella sp。的动力学。自然界中M. crassus jird种群中的OE 1-1主要取决于其媒介。

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