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THE PREVALENCE OF ARBOVIRAL INFECTIONS DENGUE AND CHIKUNGUNYA IN AND AROUND BELLARY DISTRICT, KARNATAKA

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ABSTRACT
Background: An arbovirus is one that multiplies in a blood sucking arthropod and is transmitted by the bite to a vertebrate host. Objective: To know the prevalence of dengue and chikungunya arboviral infections in and around Bellary district. Material and Methods: The laboratory records of clinically suspected dengue and chikungunya patients from January 2009 to December 2011 were analyzed retrospectively and results of Ig M anti dengue and chikungunya antibodies tested by Ig M capture enzyme linked immunosorbant assay (Mac ELISA). A total of 1396 dengue suspected serum samples
were analyzed, out of which 160 (11.46%) samples were found positive for dengue virus infection. Maximum positive cases were seen in 2009 (15.72%). A total of 1386 chikungunya suspected serum samples were analyzed, out of which 343 (24.75%) samples were fond positive for chikungunya virus infection. Maximum numbers of positive cases were seen in 2010 (28.40%). Here maximum cases were found in 2009 (7.09%). The present study emphasizes the continuous seroepidemiological surveillance for the effective arboviruses mainly dengue and chikungunya control programme.
Key words: Dengue, Chikungunya and Ig M antibody capture ELISA.

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