Laboratorio de Arbovirología, Centro de Investigaciones Regionales Dr. Hideyo Noguchi, Universidad Autónoma de Yucatán, Mérida, Yucatán, Mexico.
Am J Trop Med Hyg. 2013 Aug;89(2):385-97. doi: 10.4269/ajtmh.12-0772. Epub 2013 Jun 3.
The home, or domicile, is the principal environment for transmission of dengue virus (DENV) between humans and mosquito vectors. Community-wide distribution of insecticide-treated curtains (ITCs), mimicking vector control program-driven interventions, has shown promise to reduce DENV infections. We conducted a Casa Segura consumer product intervention study in Mérida, Mexico to determine the potential to reduce intradomicillary DENV transmission through ITC use in individual homes. Dengue virus infections in mosquitoes and in humans were reduced in homes with ITCs in one of two study subareas. Overall, ITCs reduced intradomicillary DENV transmission; ITC homes were significantly less likely to experience multiple DENV infections in humans than NTC homes. Dengue virus-infected Aedes aegypti females were reduced within the ITC homes where curtain use was highest. Some homes yielded up to nine infected Ae. aegypti females. This study provides insights regarding best practices for Casa Segura interventions to protect homes from intradomicillary DENV transmission.
家,或住所,是登革热病毒(DENV)在人类和蚊子媒介之间传播的主要环境。广泛分发经杀虫剂处理的窗帘(ITC),模拟了以蚊媒控制项目驱动的干预措施,已显示出有望减少 DENV 感染的潜力。我们在墨西哥梅里达进行了一项 Casa Segura 消费品干预研究,以确定通过在个别家庭中使用 ITC 减少家庭内 DENV 传播的潜力。在两个研究子区域中的一个,使用 ITC 的家庭中蚊子和人类中的登革热病毒感染减少。总体而言,ITC 减少了家庭内 DENV 的传播;与 NTC 家庭相比,ITC 家庭中人类发生多次 DENV 感染的可能性显著降低。在 ITC 使用率最高的家庭中,感染 DENV 的埃及伊蚊雌性数量减少。有些家庭甚至多达 9 只感染的埃及伊蚊雌性。这项研究提供了有关 Casa Segura 干预措施的最佳实践的见解,以保护家庭免受家庭内 DENV 传播。