Williams Craig R, Long Sharron A, Webb Cameron E, Bitzhenner Moritz, Geier Martin, Russell Richard C, Ritchie Scott A
School of Public Health and Tropical Medicine, James Cook University, P.O. Box 6811, Cairns, Queensland 4870, Australia.
J Med Entomol. 2007 Mar;44(2):345-50. doi: 10.1603/0022-2585(2007)44[345:aapsub]2.0.co;2.
BG-Sentinel mosquito traps were trialed as a tool for the rapid assessment (24-h collections) and routine monitoring (72-h collections) of adult Aedes aegypti L. populations in north Queensland. Analysis of Ae. aegypti collections using BG-Sentinels set in suburban Cairns for 24 h permitted the calculation of sample size for a range of precision levels. Clusters of houses with BG-Sentinels operating continuously for 15 d, with collections every 72 h, also permitted required sample size calculation. Evidence of Ae. aegypti spatial clustering at the house scale was revealed, with statistically significant effects detected for all collection days. Less variation was detected at each trap location, with only nine of 32 trap locations revealing significant clustering over time. Trap-out effects through continuous BG-Sentinel operation at a fixed location were absent. The findings support fixed position sampling at 72-h intervals for routine monitoring ofAe. aegypti populations in Cairns. Despite the relationship between collections of adult vectors and the incidence of disease remaining unknown, BG-Sentinel collections provide an alternative and less labor-intensive abundance measure for assessing risk of dengue virus transmission and success of dengue vector control programs.
BG-哨兵诱蚊器被作为一种工具，用于对昆士兰北部埃及伊蚊成虫种群进行快速评估（24小时收集）和常规监测（72小时收集）。对放置在凯恩斯郊区的BG-哨兵诱蚊器收集的埃及伊蚊进行24小时分析，从而能够计算出一系列精度水平下的样本量。连续15天每72小时收集一次的、配备BG-哨兵诱蚊器的房屋集群，也能够计算出所需的样本量。结果显示了埃及伊蚊在房屋尺度上的空间聚集现象，在所有收集日都检测到了具有统计学意义的影响。每个诱捕地点检测到的变异较少，32个诱捕地点中只有9个显示出随时间推移有显著的聚集现象。在固定地点连续使用BG-哨兵诱蚊器不存在诱捕效应。这些发现支持以72小时间隔进行固定位置采样，用于凯恩斯埃及伊蚊种群的常规监测。尽管成虫媒介的收集与疾病发病率之间的关系尚不清楚，但BG-哨兵诱蚊器收集提供了一种替代方法，且劳动强度较低，可用于评估登革热病毒传播风险和登革热媒介控制项目的成效。
