Dengue fever is a mosquito-borne tropical disease caused by the dengue virus. The death toll from dengue fever in West Bengal has gone up to 12, reported an official.
Health service director B.R. Satpathi said, "The last death was reported on Saturday, December 5, 2015. The toll stands at 12. Over 7,000 dengue infections have been reported across the state in 2015."