背景:蚊媒疾病,比如疟疾,登革热,寨卡和基孔肯雅,在全球热带和亚热带地区构成重大公共卫生威胁。为了减轻这些疾病对人类健康的影响,有效的媒介监测和控制策略是必要的。传统的矢量控制方法,依赖化学药剂,如杀虫剂和杀幼虫剂,面临阻力和环境问题等挑战。因此,一直在推动探索新的监视和控制工具。大规模诱捕干预措施已成为减轻蚊媒疾病负担的一种有希望的环保方法。这项研究评估了在雷诺萨的埃及伊蚊种群上使用自灭性妊娠产卵器(AGO)进行的大规模诱捕干预措施,塔毛利帕斯,墨西哥。
方法:选择了四个社区来评估三种治疗方法的效果:AGO质量捕获,集成矢量控制(IVC),其中包括减少来源和使用化学杀幼剂和杀成虫剂,和Ae上的AGO+IVC。埃及伊蚊种群。还包括没有干预的控制区。通过比较Ae来评估干预措施的有效性。每个治疗的治疗前(9周)和治疗后(11周)之间的埃及伊蚊丰度。
结果:仅使用具有84%覆盖率的AGO质量捕获的治疗显着降低了Ae。埃及伊蚊女性人口增长47%,从3.75±0.32到1.96±0.15雌性/陷阱/周。不出所料,Ae的丰富。控制区的埃及伊蚊与治疗前后没有差异(范围为4.97±0.59至5.78±0.53);Ae。IVC治疗前的埃及伊蚊丰度为3.47±0.30,后为4.13±0.35,这并没有明显的不同。然而,Ae.AGOIVC治疗中的埃及伊蚊丰度从干预前的1.43±0.21增加到干预后的2.11±0.20;这种增加可能部分原因是AGO覆盖率低(56%)。
结论:这是我们关于墨西哥AGO大规模诱捕干预措施有效性的第一份报告,将AGO确立为控制Ae的潜在工具。埃及伊蚊在墨西哥东北部部署时具有足够的覆盖范围。
BACKGROUND: Mosquito-borne diseases, such as malaria, dengue, Zika and chikungunya, pose significant public health threats in tropical and subtropical regions worldwide. To mitigate the impact of these diseases on human health, effective vector surveillance and control strategies are necessary. Traditional vector control methods, which rely on chemical agents such as insecticides and larvicides, face challenges such as resistance and environmental concerns. Consequently, there has been a push to explore novel surveillance and control tools. Mass trapping interventions have emerged as a promising and environmentally friendly approach to reducing the burden of mosquito-borne diseases. This study assessed mass-trapping interventions using autocidal gravid ovitraps (AGOs) on Aedes aegypti populations in Reynosa, Tamaulipas, Mexico.
METHODS: Four neighborhoods were selected to evaluate the effects of three treatments: AGO mass-trapping, integrated vector control (IVC), which included source reduction and the application of chemical larvicide and adulticide, and AGO + IVC on Ae. aegypti populations. A control area with no interventions was also included. The effectiveness of the interventions was evaluated by comparing Ae. aegypti abundance between the pre-treatment period (9 weeks) and the post-treatment period (11 weeks) for each treatment.
RESULTS: Only treatment using AGO mass trapping with an 84% coverage significantly reduced Ae. aegypti female populations by 47%, from 3.75 ± 0.32 to 1.96 ± 0.15 females/trap/week. As expected, the abundance of Ae. aegypti in the control area did not differ from the pre- and post-treatment period (range of 4.97 ± 0.59 to 5.78 ± 0.53); Ae. aegypti abundance in the IVC treatment was 3.47 ± 0.30 before and 4.13 ± 0.35 after, which was not significantly different. However, Ae. aegypti abundance in the AGO + IVC treatment increased from 1.43 ± 0.21 before to 2.11 ± 0.20 after interventions; this increase may be explained in part by the low AGO (56%) coverage.
CONCLUSIONS: This is the first report to our knowledge on the effectiveness of mass-trapping interventions with AGOs in Mexico, establishing AGOs as a potential tool for controlling Ae. aegypti in Northeastern Mexico when deployed with sufficient coverage.