RESUMEN
Mosquitoes act as vectors for several diseases including malaria and filaria. In Indian scenario, Chhattisgarh is endemic for both the diseases. The present study on prevalence of mosquito population in block Chhura of Raipur district of Chhattisgarh state was undertaken between August 2002 and March 2004 to asses the distribution pattern of various species of mosquitoes and their seasonal variations. Indoor resting mosquitoes were collected from five villages by aspirator tube in the morning (06:00-08:00 hr) using torchlight. Adult mosquitoes were identified using standard morphological and pictorial keys. Altogether 11 species belonging to three genera viz., Anopheles (7 species), Armigeres (1 species) and Culex (3 species) were recorded during study period. Average man-hour mosquito density was high in February 2003 (62.15) & March 2003 (69.35) and declined gradually till June 2003. From July 2003, it started rising again and reached a peak in August (94.10)-September (91.60) 2003. The vector species i.e. Anopheles culicifacies and Anopheles annularis were recorded high in rainy and winter seasons.
Asunto(s)
Culicidae/clasificación , Culicidae/crecimiento & desarrollo , Estaciones del Año , Animales , Anopheles/crecimiento & desarrollo , Anopheles/fisiología , Culex/crecimiento & desarrollo , Culex/fisiología , Culicidae/fisiología , India , Insectos Vectores/clasificación , Insectos Vectores/crecimiento & desarrollo , Insectos Vectores/fisiología , Malaria/transmisión , Densidad de Población , Prevalencia , Población Rural , Especificidad de la EspecieRESUMEN
Indoor resting freshly engorged Culex quinquefasciatus collected from three different habitats viz., human, cattle and mixed dwellings of six localities of Raipur city, were analyzed for the source of blood meal by precipitin test. Of the 60 specimens from human dwellings 52 were positive for human blood with an anthropophilic index of 90%. Of the 25 specimens from cattlesheds 15 were positive for human blood with an index of 60%. Of the 20 specimens from mixed dwellings 12 showed human blood with an anthropophilic index of 63.15%. Thus, the Culex quinquefasciatus at Raipur city in Madhya Pradesh state is predominantly anthropophilic in nature irrespective of the nature of habitat of the mosquito vector.
Asunto(s)
Culex/fisiología , Conducta Alimentaria , Animales , Conducta Apetitiva , Bovinos , Femenino , Interacciones Huésped-Parásitos , Humanos , IndiaRESUMEN
Lymphatic filariasis caused byWuchereria bancrofti is a major health problem next only to malaria. A study had been conducted to estimate the prevalence of microfilaraemia in a rural endemic community near Raipur. The incidence of microfilaramia in the community was found to be about 14% when studied by night finger prick method. The incidence appears to be more in males as compared to females. The infection rate in vector population i.e.,Culex quinquefasciatus was recorded at a rate of 10%. No relationship could be drawn between the rates of vector and human filarial infections or between the density of vector population and the rate of vector/human infection(s). Prior health education is essential before taking up control and preventive measures in given endemic zone.