Epidemiological and entomological investigation in dengue outbreak area of Ahmedabad district

Epidemiological and Entomological investigations conducted in seven affected villages of Sanand and Viramgam Talukas of Ahmedabad district revealed that all age groups and both the genders were affected. 33.33% blood samples of patients showed seropositivity suggesting dengue infection Similarly, Dengue virus antigen was detected in 7 Females Ae. aegypti out of 2 Males and 26 Females tested by indirect immunofluroscent technique. Aedes aegypti population measured by various parameters i.e. Premise index (32.16%), Receptacle index (26.15%) and infested receptacle index (0.36%) were above the critical limit. Aedes aegypti population is susceptible to 5% Malathion. The findings suggest the fever outbreak was of dengue. Co-related evidences indicated the possible role of dengue 2 virus in the outbreak.