What is dengue virus and how does it infect a host? Learn the life cycle of this dangerous virus through this educational animation. The dengue virus has .\rbr\rbrLearn how mosquitoes spread diseases and infect human hosts in this video on the mosquito life cycle. To prevent mosquitoes from spreading diseases, such .\rbr\rbrWatch these short videos and animations to learn about the dengue virus and how it spreads, and about the life cycle of the mosquito vector.