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首页> 外文期刊>Vector borne and zoonotic diseases >Unraveling the ecological complexities of tick-associated crimean-congo hemorrhagic fever virus transmission: A gap analysis for the western palearctic
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Unraveling the ecological complexities of tick-associated crimean-congo hemorrhagic fever virus transmission: A gap analysis for the western palearctic

机译：揭示与tick相关的克里米亚-刚果出血热病毒传播的生态复杂性：西部古北极的缺口分析

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This review aims to summarize the current knowledge of the eco-epidemiology of Crimean-Congo hemorrhagic fever (CCHF) virus transmission reviewing the most recent scientific advances in the last few decades of epidemic and non-epidemic ("silent") periods. We explicitly aim to highlight the dynamics of transmission that are still largely unknown. Recent knowledge gathered from research in Africa and Europe explains the very focal nature of the virus, and indicates that research on the ecology of the virus in the inter-epidemic periods of the disease has not yet been addressed. Hyalomma spp. ticks have been incriminated in the transmission of the virus under field conditions, but the role of other ticks found infected in nature remains to be tested under experimental conditions. Published evidence suggests that the increase in human cases reported in the Balkans, Turkey, and Russia is perhaps less due to the effect of changes in climate, but rather result from the impact of yet unexplored mechanisms of amplification that might be supported by wild animal hosts. Assessment of the available data suggests that epidemics in Eastern Europe are not the result of a spreading viral wave, but more likely are due to a combination of factors, such as habitat abandonment, landscape fragmentation, and proliferation of wildlife hosts that have exacerbated prevalence rates in tick vectors. There is an urgent need to empirically demonstrate these assumptions as well as the role of birds in introducing infected ticks, and also to evaluate the potential for survival of introduced ticks. Either a replacement of the pathogenic virus in the western Mediterranean or a lack of westward dissemination of infected tick populations may explain the absence of the virus in Western Europe.
机译：这篇综述旨在总结克里米亚-刚果出血热（CCHF）病毒传播的生态流行病学的最新知识，回顾流行和非流行（“沉默”）时期的最近几十年的最新科学进展。我们明确旨在突出仍然鲜为人知的传播动力。从非洲和欧洲的研究中收集到的最新知识说明了该病毒的主要特性，并表明尚未对该疾病流行期间的病毒生态学研究进行研究。透明质酸菌field在田间条件下的传播途径已被证明是but虫，但自然界中发现的其他tick虫的作用仍有待在实验条件下进行测试。公开的证据表明，巴尔干，土耳其和俄罗斯报告的人类感染病例增加的原因可能不是气候变化所致，而是野生动物宿主可能支持的尚未探索的扩增机制的影响所致。对现有数据的评估表明，东欧的流行不是病毒波传播的结果，而是更有可能是由多种因素共同导致的，例如栖息地被遗弃，景观破碎化以及野生动植物寄主的繁殖加剧了流行率在刻度线向量中。迫切需要通过经验证明这些假设以及鸟类在引入受感染tick中的作用，并评估引入of的生存潜力。地中海西部的病原性病毒替代或感染的tick虫种群缺乏向西传播可能解释了西欧缺乏该病毒。

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