Sandfly survey in Nainital and Almora districts of Uttaranchal with particular reference to Phlebotomus argentipes, vector of kala-azar.
No Thumbnail Available
Date
2001-03-20
Journal Title
Journal ISSN
Volume Title
Publisher
Abstract
Kala-azar continues to pose a major public health problem in Bihar, West Bengal and parts of eastern Uttar Pradesh in India causing great deal of morbidity and mortality. During 1998, several kala-azar cases from Sub-Himalayan region were treated in Delhi hospitals. And a suspected focus of kala-azar was subsequently reported from this area. Therefore a preliminary sandfly survey was carried out during October, 1999 in 18 randomly selected villages at different altitudes in Nainital & Almora districts of Kumaon region Uttaranchal. The surveys revealed relative preponderance of vector sandfly Ph. argentipes as 77%; mainly confined to cattlesheds and mixed dwellings in the villages at an altitude ranging from 350-960 metres main sea level. The other sandfly species encountered were: Ph. papatasi 6.9%, Ph. major 2.9% and 13.2% Sergentomyia spp. 17.4% Ph. argentipes reacted positive with human antisera and 82.6% with bovine but none reacted with goat, pig dog and bird antisera indicating that Ph. argentipes in the area is mainly zoophilic. Ph. argentipes was found to be highly susceptible to DDT; mortality ranging from 98-100%.
Description
Keywords
Citation
Rao JS, Sharma SK, Bhattacharya D, Saxena NB. Sandfly survey in Nainital and Almora districts of Uttaranchal with particular reference to Phlebotomus argentipes, vector of kala-azar. Journal of Communicable Diseases. 2001 Mar; 33(1): 7-11