...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Journal of Medical Entomology >Temporal distribution of Aedes aegypti in different districts of Rio de Janeiro, Brazil, measured by two types of traps
【24h】

Temporal distribution of Aedes aegypti in different districts of Rio de Janeiro, Brazil, measured by two types of traps

机译：用两种类型的圈闭测量的巴西里约热内卢不同地区的埃及伊蚊的时间分布

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Dengue dynamics in Rio de Janeiro, Brazil, as in many dengue-endemic regions of the world, is seasonal, with peaks during the wet-hot months. This temporal pattern is generally attributed to the dynamics of its mosquito vector Aedes aegypti (L.). The objectives of this study were to characterize the temporal pattern of Ae. aegypti population dynamics in three neighborhoods of Rio de Janeiro and its association with local meteorological variables; and to compare positivity and density indices obtained with ovitraps and MosquiTraps. The three neighborhoods are distinct in vegetation coverage, sanitation, water supply, and urbanization. Mosquito sampling was carried out weekly, from September 2006 to March 2008, a period during which large dengue epidemics occurred in the city. Our results show peaks of oviposition in early summer 2007 and late summer 2008, detected by both traps. The ovitrap provided a more sensitive index than MosquiTrap. The MosquiTrap detection threshold showed high variation among areas, corresponding to a mean egg density of approximately 25-52 eggs per ovitrap. Both temperature and rainfall were significantly related to Ae. aegypti indices at a short (1 wk) time lag. Our results suggest that mean weekly temperature above 22-24 degrees C is strongly associated with high Ae. aegypti abundance and consequently with an increased risk of dengue transmission. Understanding the effects of meteorological variables on Ae. aegypti population dynamics will help to target control measures at the times when vector populations are greatest, contributing to the development of climate-based control and surveillance measures for dengue fever in a hyperendemic area.
机译：像世界上许多登革热流行地区一样，巴西里约热内卢的登革热流行是季节性的，在湿热月份达到顶峰。此时间模式通常归因于其蚊媒埃及伊蚊（L.）的动态。这项研究的目的是表征Ae的时间模式。里约热内卢三个街区的埃及种群动态及其与当地气象变量的关系;并比较使用诱集器和MosquiTraps获得的阳性和密度指数。这三个社区在植被覆盖，卫生，供水和城市化方面截然不同。从2006年9月到2008年3月，每周进行一次蚊子采样，在此期间，该市发生了大规模的登革热流行病。我们的结果显示，两个诱集装置均在2007年初夏和2008夏末产卵高峰。产卵器比MosquiTrap提供了更敏感的指标。 MosquiTrap的检测阈值显示区域之间的高度差异，相当于每个产卵器的平均卵密度约为25-52个卵。温度和降雨均与Ae显着相关。短时（1 wk）时滞aegypti指数。我们的结果表明，每周平均温度高于22-24摄氏度与高Ae密切相关。埃及丰富，因此增加了登革热传播的风险。了解气象变量对Ae的影响。埃及种群的动态变化将有助于在媒介种群最大的时候确定控制措施，从而促进了高流行地区基于气候的登革热控制和监测措施的发展。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号