West Nile virus infection rates in Culex nigripalpus (Diptera: culicidae) do not reflect transmission rates in Florida
West Nile virus infection rates in Culex nigripalpus (Diptera: culicidae) do not reflect transmission rates in Florida
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DOI：
10.1603/0022-2585-40.3.253
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发表时间：
2003-05-01
影响因子：
2.1
通讯作者：
Tabachnick, WJ
中科院分区：
文献类型：
--
作者：
Rutledge, CR;Day, JF;Tabachnick, WJ
我们描述了第一个记录的西尼罗河（WN）病毒的北美蚊子现场传播。WN于2001年在北方佛罗里达首次被发现。在该地区进行了为期四晚的密集蚊子诱捕和监测计划，以评估WN的蚊子传播。在四个晚上的每一天，四个捕蚊器，每个捕蚊器有一只哨兵鸡，被放置在五个不同的位置。共收集了11，948只蚊子，发现14个蚊子池含有WN，最低感染率为每千只1.08至7.54。80只哨兵鸡中只有一只血清转化为WN，表明研究期间发生了单一的蚊子传播事件，蚊子传播率为0.8至1/1000。黑须库蚊Theobald负责WN传播给哨兵鸡，虽然两个Cx。黑须库蚊和致倦库蚊感染WN。在这项研究中首次报告了WN暴发的Moscow传播率。这些信息对于确定人类和动物感染风险至关重要。
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.