Dengue has become endemic in India with outbreaks occurring every year. In recent years, the disease has changed its course
manifesting in the severe form as DHF, with increasing frequencies. Hence, the seroprevalence data of the last 3 years in samples
obtained from suspected dengue patients from a tertiary care hospital were analyzed. Out of 1202 serum samples received in the
laboratory from suspected dengue cases during 2010 to 2012, 66 (16.26%) were serologically confirmed. The case fatality rate among
children is high. In our study out of 66 cases 31 were children below the age 12. Dengue is observed to be seasonal disease. Dengue
specific antibody cases were mainly reported during post-monsoon period with maximum cases 13 (19.69%).
One of the major factor for emergence of dengue as a major public health problem is inadequate surveillance. As a result an epidemic
has often reached or passed the peak of transmission before it is detected. The laboratory test such as IgM antibodies is an early
warning of an impending dengue epidemic. Also surveillance results can alert the public to take action and physicians to diagnose and
properly treat dengue/DHF cases.