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首页> 美国卫生研究院文献>International Journal of Environmental Research and Public Health >Vector Contact Rates on Eastern Bluebird Nestlings Do Not Indicate West Nile Virus Transmission in Henrico County Virginia USA
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Vector Contact Rates on Eastern Bluebird Nestlings Do Not Indicate West Nile Virus Transmission in Henrico County Virginia USA

机译：在美国弗吉尼亚州亨里科县东部蓝鸟雏鸟的媒介接触率不能表明西尼罗河病毒的传播

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摘要

Sensitive indicators of spatial and temporal variation in vector-host contact rates are critical to understanding the transmission and eventual prevention of arboviruses such as West Nile virus (WNV). Monitoring vector contact rates on particularly susceptible and perhaps more exposed avian nestlings may provide an advanced indication of local WNV amplification. To test this hypothesis we monitored WNV infection and vector contact rates among nestlings occupying nest boxes (primarily Eastern bluebirds; Sialia sialis, Turdidae) across Henrico County, Virginia, USA, from May to August 2012. Observed host-seeking rates were temporally variable and associated with absolute vector and host abundances. Despite substantial effort to monitor WNV among nestlings and mosquitoes, we did not detect the presence of WNV in these populations. Generally low vector-nestling host contact rates combined with the negative WNV infection data suggest that monitoring transmission parameters among nestling Eastern bluebirds in Henrico County, Virginia, USA may not be a sensitive indicator of WNV activity.
机译：媒介与宿主接触率的时空变化的敏感指标对于了解诸如西尼罗河病毒（WNV）等虫媒病毒的传播和最终预防至关重要。监测特别易感的和可能更多暴露的鸟类雏鸟的媒介接触率可能提供局部WNV扩增的高级指示。为了检验该假设，我们监测了美国弗吉尼亚州亨里科县从2012年5月至2012年8月在巢箱中（主要是东部蓝鸟；西利亚sialis，Turdidae）的雏鸟之间的WNV感染和媒介接触率。与绝对矢量和宿主丰度相关。尽管在监视雏鸟和蚊子中的WNV方面付出了巨大的努力，但我们并未在这些人群中检测到WNV的存在。通常，低向量载体宿主接触率与阴性WNV感染数据相结合表明，监测美国弗吉尼亚州亨里科县雏鸟东部蓝鸟之间的传播参数可能不是WNV活性的敏感指标。

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