The causal organism of dengue fever is a mosquito-borne virus which belongs to which one among the following categories?

The dengue virus (DENV) is a single-stranded RNA virus belonging to the genus Flavivirus of the family Flaviviridae. Since it is an RNA flavivirus, the option 'Flavi-ribo virus' best describes it. Adenoviruses are DNA viruses causing respiratory illnesses; Vaccinia virus is a poxvirus used in the smallpox vaccine; and Nipah virus belongs to the family Paramyxoviridae and causes a different zoonotic disease. Dengue is transmitted primarily by Aedes aegypti mosquitoes.