Selection for virulent dengue viruses occurs in humans and mosquitoes.

The article informs that the selection for virulent dengue viruses occurs in humans and mosquitoes. According to the Southwest Foundation Biomedical Researh by R. Cologna and colleagues in San Antonio, Texas, dengue is the most common mosquito-borne viral disease in humans. The spread of both mosquito vectors and viruses has led to the resurgence of epidemic dengue fever (a self-limited flu-like syndrome) and the emergence of dengue hemorrhagic fever (severe dengue with bleeding abnormalities) in urban centers of the tropics. Cologna and colleagues published their study in the "Journal of Virology."