Dengue may be a mosquito-borne infective agent malady that has chop-chop unfold all told regions of United Nations agency in recent years. dengue fever virus is transmitted by feminine mosquitoes chiefly of the species Aedes aegypti and, to a lesser extent, Ae. albopictus. These mosquitoes also are vectors of chikungunya, black vomit and Zika viruses. dengue fever is widespread throughout the tropics, with native variations in risk influenced by rain, temperature, ratio and unplanned fast urbanization. {dengue|dengue fever|dandy fever|breakbone fever|infectious malady} causes a large spectrum of disease. this could vary from subclinical malady (people might not grasp they're even infected) to severe flu-like symptoms in those infected. though less common, some individuals develop severe dengue fever, which might be any range of complications related to severe trauma, organ impairment and/or plasma escape. Severe dengue fever includes a higher risk of death once not managed suitably. Severe dengue fever was 1st recognized within the Nineteen Fifties throughout dengue fever epidemics within the Philippines and Asian country. Today, severe dengue fever affects most Asian and occupant countries and has become a number one explanation for hospitalization and death among kids and adults in these regions. dengue fever is caused by a pandemic of the arborvirus family and there area unit four distinct, however closely connected, serotypes of the virus that cause dengue fever .Recovery from infection is believed to produce long immunity against that serotype. However, cross-immunity to the opposite serotypes once recovery is barely partial, and temporary. succeeding infections (secondary infection) by different serotypes increase the danger of developing severe dengue fever.


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