Dengue is a vector borne disease transmitted by Aedes aegypti and Ae. albopictus. The incidence of the disease is increasing worldwide and currently 40 per cent of the global population is at risk of the infection. The number of cases in the WHO Southeast
Asia region surged nearly 70 per cent from 152,448 in 2004 to 257,882 in 2009. There is no specific treatment of the disease and the only way to control the disease is through vector control, which includes removal or covering water harbouring containers, the
use of insecticide treated bed nets and fogging with insecticides.