Abstract
Objective: To understand the prevalence pattern of dengue in Shimoga district of Karnataka, India. Methods: A comprehensive data collection about dengue infection, prevalence, transmission and severity in different taluks of Shimoga district of Karnataka, India from district health department, hospital records, meteorological departments and district surveillance board. Data analysis and rate of prevalence of Dengue in the district was calculated. Results: Data analysis revealed Shimoga district having an alarming rate of 67 fold increase in dengue cases in 2013. Shikaripura taluk emerged as the most dengue prevalent taluk and females were less prone to dengue epidemic in all taluks of Shimoga. Monitoring Aedes mosquito larvae or larval indices such as Container Index(CI) and Breteau Index(BI) soon after the outbreak showed higher rate than accepted by WHO which was correlated with the number of dengue incidence in the taluk. Conclusion: The study showed a direct relation between Dengue prevalence in district during monsoon months due to the increase in the Aedes mosquito larval breeding sites. This also gave insights about improper eco-epidemiological settings for the increase in the magnitude of this epidemic in the district.
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