<prompt> The dengue fever virus isFlavi virusEcho virusEntero virusOhomyxo virus  <response>: Dengue breakbone fever is a mosquito-borne infection caused by a flavivirus that is characterized by fever, severe headache, muscle and joint pain, nausea and vomiting, eye pain, and rash.Ref: Jawetz, Melnick, Adelbergs Medical Microbiology; Twenty-Seventh Edition; Chapter 38; Ahropod-Borne and Rodent-Borne Viral Diseases 