Current emerging situation of dengue in India.

Outbreaks of dengue fever (DF) have been reported from various countries. Although DF has been endemic in India from the nineteenth century, dengue haemorrhagic fever (DHF) was first reported in 1987. The first major widespread epidemic of DHF and dengue shock syndrome (DSS) was reported in 1996 with four serotypes reported to be in co-circulation. In 2012 an outbreak occurred in India during which a total of 47,029 DF cases and 242 deaths were reported - three times higher than the previous year. Twelve states reported a large number of cases, including Tamil Nadu which recorded 12,264 from various districts. We discuss methods of prevention and control.