Cavallaro Michael C, Risley Eric, Lockburner Paige
Sussex County Mosquito Control, 150 Morris Turnpike, Newton, NJ 07860.
J Am Mosq Control Assoc. 2018 Dec;34(4):306-310. doi: 10.2987/18-6792.1.
Sentinel surveillance systems demonstrate an improved ability to supplement monitoring data and anticipate arbovirus outbreaks (i.e., sentinel avian species). Management complications can arise during unpredictable or unseasonal disease detections, especially in rural areas where resident distribution is patchy. Using spillways near residential lake communities as static surveillance locations, we tested a novel partially submerged sticky trapping technique and screened wild populations of adult female black flies (Diptera: Simuliidae) for West Nile virus (WNV) and eastern equine encephalitis virus (EEEV). Trap site selection criteria considered the density of immature black fly colonization on spillway surfaces and the number of positive detections of arboviral targets in nearby mosquito populations. On average (±standard error), sticky traps captured 134 (±33) adult black flies over a 24-h period, with 1 trap capturing as many as 735 individuals. Although we detected positive cases of WNV from 20 mosquito trapping sites within 16 km (approx. flight radius) of the selected lake spillways, mixed pools of adult female complex and were all negative for both arboviruses. This study yielded an application for partially submerged sticky traps to collect adult female black flies. Its potential uses for monitoring the infection rates of more well-documented parasites are discussed.
哨点监测系统显示出在补充监测数据和预测虫媒病毒爆发（如哨点鸟类物种）方面能力有所提高。在不可预测或非季节性疾病检测期间可能会出现管理并发症，特别是在居民分布零散的农村地区。我们利用住宅湖泊社区附近的溢洪道作为静态监测地点，测试了一种新型的部分淹没式粘性诱捕技术，并对成年雌性黑蝇（双翅目：蚋科）野生种群进行西尼罗河病毒（WNV）和东部马脑炎病毒（EEEV）筛查。诱捕地点选择标准考虑了溢洪道表面未成熟黑蝇定殖的密度以及附近蚊子种群中虫媒病毒目标的阳性检测数量。平均而言（±标准误差），粘性诱捕器在24小时内捕获了134（±33）只成年黑蝇，其中1个诱捕器捕获多达735只个体。尽管我们在选定湖泊溢洪道16公里（约飞行半径）范围内的20个蚊子诱捕地点检测到WNV阳性病例，但成年雌性黑蝇混合样本对两种虫媒病毒均呈阴性。本研究产生了一种应用部分淹没式粘性诱捕器收集成年雌性黑蝇的方法。还讨论了其在监测更多已充分记录的寄生虫感染率方面的潜在用途。
