Which viral infection transmitted primarily by daytime-biting Aedes aegypti mosquitoes is characterized by sudden high fever, retro-orbital headache, and severe arthralgia?
Answer and explanation
Correct answer: A. Dengue fever
- Step 1: Dengue virus is a positive-sense single-stranded RNA virus of the family Flaviviridae with four distinct serotypes. Step 2. Acute infection causes intense joint and bone aches (breakbone fever) and may progress to hemorrhagic shock syndrome. Answer: Dengue fever. Why not the others: Yellow fever causes jaundice and liver failure; Chikungunya causes chronic arthritic symptoms; Zika causes microcephaly.
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