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首页> 外文期刊>Journal of Medical Entomology >West Nile virus infection rates in Culex nigripalpus (Diptera : culicidae) do not reflect transmission rates in Florida
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West Nile virus infection rates in Culex nigripalpus (Diptera : culicidae) do not reflect transmission rates in Florida

机译：库蚊（Diptera：culicidae）中的西尼罗河病毒感染率未反映佛罗里达的传播率

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摘要

We describe the first documented field transmission of West Nile (WN) virus by a North American mosquito. WN was first detected in northern Florida in 2001. An intensive mosquito trapping and surveillance program was conducted in this region for four nights to assess mosquito transmission of WN. Four mosquito traps, each with a single sentinel chicken, were placed at five different locations on each of four nights. A total of 11,948 mosquitoes was collected, and 14 mosquito pools were found to contain WN, giving a minimum infection rate between 1.08 and 7.54 per 1,000. Only one of the 80 sentinel chickens seroconverted to WN, demonstrating a single mosquito transmission event during the study and a mosquito transmission rate of between 0.8 and I per 1,000. Culex nigripalpus Theobald was responsible for WN transmission to the sentinel chicken, although both Cx. nigripalpus and Culex quinquefasciatus Say were found infected with WN. Mosquito transmission rates are reported in this study for the first time for a WN outbreak. This information is essential to determine risk of human and animal infection.
机译：我们描述了北美蚊子首次记录的西尼罗河（WN）病毒的现场传播。 WN于2001年在佛罗里达州北部首次被发现。在该地区进行了为期四个晚上的密集诱捕和监视计划，以评估WN的蚊子传播情况。在四个晚上的每个晚上，将四个诱蚊器放置在五个不同的位置，每个诱蚊器都带有一只哨兵鸡。总共收集到11948个蚊子，并发现14个蚊子池中含有WN，其最低感染率在每1000例1.08到7.54之间。在80只前哨鸡中，只有一只被血清转化为WN，表明在研究过程中发生了一次蚊子传播事件，蚊子传播率在每1000人中有0.8至I。 Culex nigripalpus Theobald负责WN传递到前哨鸡，尽管两者均为Cx。发现黑猩猩和库克斯库克斯库克斯感染了WN。这项研究首次报告了WN爆发的蚊子传播速率。该信息对于确定人和动物感染的风险至关重要。

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