Results: There was a total of 100 cases, of which 56% (56/100) were men. Among
the four villages studied, the highest number of cases was from Gopalpur 37%
(37/100), followed by Badalpur 26% (26/100); 19% (19/100) of cases had a history
of migration from dengue-endemic areas. The majority of cases were in age group
15–45 years – 52% (52/100), followed by the age group >45 years – 28% (28/100).
All the cases had history of fever (100%), followed by myalgia – 82%, headache
– 78%, and retro-orbital pain – 73%. The outbreak started on 7 September 2012,
peaked on 18 September, then gradually declined and no further cases were noted
after 28 September 2012. Seventy-nine per cent (79/100) of cases were NS1 test
positive (non-structural antigen-1) and 72% (13/18) cases were positive on a
dengue monoclonal antibody (IgM) capture enzyme-linked immunosorbent assay
(MAC-ELISA) test. All recovered except one (case-fatality ratio: 1%). The values
for Household Index, Container Index and Breteau Index of the four villages were:
Badalpur, 3%, 10% and 5%; Gopalpur, 13