A Brief Study on Recent Epidemiological Trend of Dengue in ATeriary Care Hospital In Kolkata

Introduction: Dengue fever is a recurrent problem in West Bengal. Dengue Haemorrhagic Fever (DHF) and Dengue Shock Syndrome(DSS) are two potentially fatal complications of Dengue fever. Objectives:The study was performed to find out the seroprevalence and recent trend of Dengue among the symptomatic patients attending a tertiary care hospital in Kolkata. Materials & Methods:A total of 673 suspected cases fulfilling the inclusion criteria were tested by Dengue IgM Capture ELISA over a period of four years (2012-2015) in the department of Microbiology, NilRatanSircar Medical College & Hospital, Kolkata. Results:Total 150 samples were found to be Dengue IgM reactive (22.28%).Amongst the Dengue IgMseropositive cases, 92 cases were male (61.33%) whereas 58 cases were female (38.67%). Male predominance was thus observed over the females throughout the study period.Majority of the reactive cases (46%) were in the age group (10 to 29 years) in all four years of the study period. A clear post rainy season peak was noted in each year of the study period. A peak rise was observed in 2012, then a fall during 2013 and 2014 followed by a sharp rise in 2015.Dengue IgMseropositive cases during the year 2015 on follow uprevealedno report of any death. Conclusion: Strict surveillance and compliance with the vector control programme are required to prevent Dengue outbreak