Mans Nicole Z, Yurgionas Sasha E, Garvin Mary C, Gary Richard E, Bresky John D, Galaitsis Alexander C, Ohajuruka Ojimadu A
Department of Biology, Oberlin College, Oberlin, Ohio 44074, USA.
Am J Trop Med Hyg. 2004 May;70(5):562-5.
From June 14 to August 30, 2001 and June 10 to August 22, 2002, the mosquitoes of Oberlin, Ohio were surveyed and tested for West Nile virus (WNV). Mosquitoes were trapped weekly using gravid traps and CO(2)-baited Centers for Disease Control light traps at seven sites in 2001 and eight sites in 2002 in woodlots within the city limits. A total of 12,151 mosquitoes, representing 14 species and one species group, were collected in gravid traps, with Culex pipiens/restuans being the most abundant, followed by Ochlerotatus triseriatus. In light traps, 12,510 mosquitoes were collected, with Aedes vexans being the most abundant, followed by Culex pipiens/restuans. All gravid trap collections were tested for WNV via reverse transcriptase-polymerase chain reaction. West Nile virus was first detected in July 2002. Of all species tested, the Cx. pipiens/restuans species group exhibited the highest minimum infection rate (MIR) and the greatest percentage of positive pools. Both the MIR and percent of positive pools increased significantly with the date, although abundance of Cx. pipiens/restuans in gravid trap collections did not.
在2001年6月14日至8月30日以及2002年6月10日至8月22日期间，对俄亥俄州奥伯林市的蚊子进行了调查，并检测了西尼罗河病毒（WNV）。2001年在市区范围内的林地中的7个地点、2002年在8个地点，每周使用孕蚊诱捕器和美国疾病控制中心的二氧化碳诱饵诱蚊灯诱捕蚊子。在孕蚊诱捕器中总共收集到12,151只蚊子，分属14个物种和1个物种组，其中尖音库蚊/致倦库蚊最为常见，其次是三带喙库蚊。在诱蚊灯诱捕器中收集到12,510只蚊子，其中骚扰伊蚊最为常见，其次是尖音库蚊/致倦库蚊。所有孕蚊诱捕器收集的样本都通过逆转录聚合酶链反应检测西尼罗河病毒。西尼罗河病毒于2002年7月首次被检测到。在所有检测的物种中，尖音库蚊/致倦库蚊物种组的最低感染率（MIR）最高，阳性样本池的百分比也最高。最低感染率和阳性样本池百分比均随日期显著增加，尽管孕蚊诱捕器收集的尖音库蚊/致倦库蚊数量并未增加。
