The long-legged, blood-sucking insect that annoys, bites and leaves you with an itchy feeling is not just a nuisanceâÂÂit's one of the world's deadliest animals. Still, guessing who it is? Mosquitoes, of course. Spreading diseases such as malaria, dengue and Zika virus, the mosquito kills more people than any other creature in the world. As per the Health Management Information System (HMIS), a data dashboard of the National Health Mission (NHM), India reported over 3.37 lakh malaria and 1.30 lakh dengue cases between April 2020 to March 2021.