2014 Volume 1 Issue 4

Prevalence of Aedes mosquitoes in various localities of Delhi during dengue transmission season


R. K. Singh, P. K. Mittal, Gaurav Kumar, R. C. Dhiman
Abstract

Entomological investigations were carried out in various localities of different Municipal Zones of Delhi, India, from July to November 2012 with a view to study the prevalence, distribution and stratification of areas for Aedes species and to identify high risk areas in the town prone to dengue/ DHF outbreak. A total of 1050 houses including some outdoor habitats were searched for Aedes breeding. Of the total houses surveyed, Aedes breeding could be detected in domestic containers/drums, water storage tanks in 276 houses. In all, a total of 8972 water containers were searched, out of which 1893 were found positive for Aedes breeding. The overall house index (HI), container index (CI), breteau index (BI), and pupal index (PI) were 26.28, 21.09, 180.28 and 67.33 respectively. Aedes aegypti was the predominant species in intra-domestic and peri-domestic containers, while Aedes albopictus and Aedes vittatus larvae were also observed in outdoor habitats. Aedes aegypti breeding was detected in all the localities, where dengue cases were recorded during the past 3 years. Based on the various indices, Aedes aegypti population was most prevalent in Sangam Vihar locality in MCD south Zone, irrespective to the number of dengue cases.

Key words: Dengue fever, Aedes breeding, house index, container index, breteau index, pupal index, Delhi


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Entomology and Applied Science Letters is an international peer reviewed publication which publishes scientific research & review articles related to insects that contain information of interest to a wider audience, e.g. papers bearing on the theoretical, genetic, agricultural, medical and biodiversity issues. Emphasis is also placed on the selection of comprehensive, revisionary or integrated systematics studies of broader biological or zoogeographical relevance. Papers on non-insect groups are no longer accepted. In addition to full-length research articles and reviews, the journal publishes interpretive articles in a Forum section, Short Communications, and Letters to the Editor. The journal publishes reports on all phases of medical entomology and medical acarology, including the systematics and biology of insects, acarines, and other arthropods of public health and veterinary significance.
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