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Dengue fever is a mosquito-borne disease caused by dengue virus, prevalent in tropical and subtropical areas. It is frequently asymptomatic ; if symptoms appear, they typically begin 3 to 14 days after infection.
Dengue virus (DENV) is the cause of dengue fever.It is a mosquito-borne, single positive-stranded RNA virus of the family Flaviviridae; genus Flavivirus. [1] [2] Four serotypes of the virus have been found, and a reported fifth has yet to be confirmed, [3] [4] [5] all of which can cause the full spectrum of disease. [1]
Dengue fever: 172 [258] 2008 Zimbabwean cholera outbreak: 2008–2009 Zimbabwe: Cholera: 4,293 [259] 2009 Bolivian dengue fever epidemic: 2009 Bolivia: Dengue fever: 18 [260] 2009 Gujarat hepatitis outbreak: 2009 India Hepatitis B: 49 [261] Queensland 2009 dengue outbreak 2009 Queensland, Australia Dengue fever: 1+ (503 cases) [262]
Under the program, authorities release special mosquitoes bred to carry a bacteria called Wolbachia, which blocks the transmission of viruses that cause dengue, zika, and yellow fever. However ...
fever, anemia, enlarged liver, enlarged spleen, death Leprosy † (Hansen's disease) 1975 Mycobacterium leprae and M. lepromatosis mycobacteria extensive contact (probably airborne disease) throughout the tropics 209,000 (2018) few skin lesions, [12] numbness: permanent damage to the skin, nerves, limbs, and eyes Dengue fever: 1999 dengue virus
Dengue fever is caused by infection through viruses of the family Flaviviridae. The illness is most commonly transmitted by Aedes aegypti mosquitoes in tropical and subtropical regions. [58] Dengue virus has four different serotypes, each of which are antigenically related but have limited cross-immunity to reinfection. [59]
Dengue vaccine is a vaccine used to prevent dengue fever in humans. [9] Development of dengue vaccines began in the 1920s but was hindered by the need to create immunity against all four dengue serotypes. [10] As of 2023, there are two commercially available vaccines, sold under the brand names Dengvaxia and Qdenga. [11] [12]
Dengue symptoms include a high fever, headache, vomiting, skin rash, and muscle and joint pain that can be so severe the disease has been called "break-bone" fever. In some cases it can cause a ...