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Targeted outdoor residual spraying, autodissemination devices and their combination against Aedes mosquitoes: field implementation in a Malaysian urban setting
Bulletin of Entomological Research ( IF 1.9 ) Pub Date : 2020-05-15 , DOI: 10.1017/s0007485320000188
Nurulhusna Ab Hamid 1 , Neal Alexander 2 , Remco Suer 3 , Nazni Wasi Ahmed 1 , Rose Nani Mudin 4 , Topek Omar 4 , Rahmat Dapari 4 , Shahrom Nor Azian Che Mat Din 5 , Roslinda Abdul Rahman 5 , Ropiah Jaraee 6 , Frederic Baur 7 , Frederic Schmitt 7 , Nick Hamon 8 , Jason H Richardson 8 , Carole Langlois-Jacques 9 , Muriel Rabilloud 9 , Mitra Saadatian-Elahi 10
Affiliation  

Currently, dengue control relies largely on reactive vector control programmes. Proactive vector-control using a rational, well-balanced integrated vector management approach may prove more successful for dengue control. As part of the development of a cluster randomized controlled epidemiological trial, a study was conducted in Johor Bahru, Malaysia. The study included one control site (three buildings) and three intervention sites which were treated as follows: targeted outdoor residual spraying only (TORS site, two buildings); deployment of autodissemination devices only (ADD site, four buildings); and the previous two treatments combined (TORS + ADD site, three buildings). The primary entomological measurement was per cent of positive ovitraps—ovitrap index (OI). The effect of each intervention on OI was analyzed by a modified ordinary least squares regression model. Relative to the control site, the TORS and ADD sites showed a reduction in the Aedes OI (−6.5%, P = 0.04 and −8.3%, P = 0.10, respectively). Analysis by species showed that, relative to control, the Ae. aegypti OI was lower in ADD (−8.9%, P = 0.03) and in TORS (−10.4%, P = 0.02). No such effect was evident in the TORS + ADD site. The present study provides insights into the methods to be used for the main trial. The combination of multiple insecticides with different modes of action in one package is innovative, although we could not demonstrate the additive effect of TORS + ADD. Further work is required to strengthen our understanding of how these interventions impact dengue vector populations and dengue transmission.

中文翻译:

有针对性的室外滞留喷洒、自动传播装置及其组合以对抗伊蚊:在马来西亚城市环境中的现场实施

目前,登革热控制主要依赖于反应性病媒控制计划。使用合理、平衡的综合病媒管理方法进行主动病媒控制可能会更成功地控制登革热。作为集群随机对照流行病学试验发展的一部分,在马来西亚新山进行了一项研究。该研究包括一个对照站点(三座建筑物)和三个干预站点,处理如下:仅针对室外残留喷洒(TORS站点,两座建筑物);仅部署自动传播设备(ADD 站点,四栋建筑);和前两种处理相结合(TORS + ADD 站点,三座建筑物)。主要的昆虫学测量是阳性诱卵器的百分比——诱卵器指数 (OI)。通过改进的普通最小二乘回归模型分析每种干预对 OI 的影响。相对于对照位点,TORS 和 ADD 位点的伊蚊OI (-6.5%,= 0.04 和 -8.3%,= 0.10,分别)。物种分析表明,相对于对照,埃。埃及人ADD 中的 OI 较低(-8.9%,= 0.03) 和 TORS (-10.4%,= 0.02)。在 TORS + ADD 站点中没有明显的这种效果。本研究提供了对用于主要试验的方法的见解。尽管我们无法证明 TORS + ADD 的累加效应,但将多种杀虫剂与不同作用方式组合在一个包装中是创新的。需要进一步的工作来加强我们对这些干预措施如何影响登革热媒介种群和登革热传播的理解。
更新日期:2020-05-15
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