(Syn. “Breakbone fever”) A flavivirus, dengue virus types 1-4, transmitted by infected specific Aedes spp mosquitoes. Sudden abrupt onset of high fever, headache, retrobulbar pain and lumbosacral pain. Fever lasts 6-7 days and may be ‘saddleback’. Initial symptoms followed by generalised myalgia, bone pain, anorexia, nausea, vomiting and weakness. A transient mottled rash may appear on 1st/2nd day and a second rash appears with resolution of fever – at first on trunk, spreading outward. WCC and platelet count depressed. Mild haemorrhagic phenomena in a few.
Article Categories:Dictionary of Tropical Medicine