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首页> 外文期刊>Journal of Medical Entomology >The Ability of the Invasive Asian Longhorned Tick Haemaphysalis longicornis (Acari: Ixodidae) to Acquire and Transmit Rickettsia rickettsii (Rickettsiales: Rickettsiaceae), the Agent of Rocky Mountain Spotted Fever, Under Laboratory Conditions
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The Ability of the Invasive Asian Longhorned Tick Haemaphysalis longicornis (Acari: Ixodidae) to Acquire and Transmit Rickettsia rickettsii (Rickettsiales: Rickettsiaceae), the Agent of Rocky Mountain Spotted Fever, Under Laboratory Conditions

机译：侵入性亚洲长角膜蜱Haemaphysalis longicornis（acari：ixodidae）获得和传播Rickettsia Rickettsii（Rickettiales：Rickettsiaceae），在实验室条件下，岩石山发现的代理商

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The invasive Asian longhorned tick, Haemaphysalis longicornis Neumann, was first detected in the United States in 2017. It has since been found in 12 states, and there is concern that the tick's parthenogenetic ability and wide variety of host species may allow for broader dissemination. Of the tick-borne diseases endemic to the United States, Rocky Mountain spotted fever (RMSF), a rapidly progressive and potentially fatal disease caused by Rickettsia rickettsii, is the most severe. There is considerable geographical overlap between spotted fever rickettsioses cases, which include RMSF, and the currently known distribution of H. longicornis, providing the potential for this tick to encounter this pathogen. We have evaluated the ability of H. longicornis to acquire and transmit R. rickettsii under laboratory conditions. Haemaphysalis longicornis as larvae and nymphs acquired the pathogen while feeding on infected guinea pigs.The infection persisted through every life stage, all of which were able to transmit R. rickettsii to naive hosts.The pathogen was also transmitted at a low frequency between generations of H. longicornis through the ova. While H. longicornis was demonstrated to be a competent vector for R. rickettsii under laboratory conditions, the probability of its involvement in the maintenance and transmission of this pathogen in nature, as well as its potential impact on human health, requires further study.
机译：Innasive Asian Longhorned Tick，Haemaphysalis Longicordornis Neumann在2017年在美国检测到。它已在12个州发现，并且担心蜱的单性生物学能力和各种宿主物种可能允许更广泛的传播。蜱传疾病的特有到美国，岩石山发现发烧（RMSF），由Rickettsia Rickettsii引起的迅速渐进和潜在的致命疾病，是最严重的。斑点发烧rickettsiase案件之间存在相当大的地理重叠，包括RMSF和H. longicornis的目前已知的分布，为遇到这种病原体，提供了这种蜱的潜力。我们在实验室条件下评估了H. Longicornis获得和传播R.Rickettsii的能力。 Haemaphysalis Longicordornis作为幼虫和若虫在喂养感染的豚鼠的同时获得了病原体。通过每个生命阶段持续存在，所有这些都能够将R.Rickettsii传递给幼稚的宿主。病原体也在几代人之间以低频率传播H. Longicornis通过OVA。虽然H. Longicordornis被证明是在实验室条件下的R.Rickettsii的能力载体，但其参与本病原体的维护和传播的可能性以及其对人体健康的潜在影响需要进一步研究。

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