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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]
The Mayo Clinic states it "is a mosquito-borne illness that occurs in tropical and subtropical areas of the world. Mild dengue fever causes a high fever and flu-like symptoms.
However, a dengue vaccine is available in the U.S. and is FDA approved for children between ages 9 and 16 who have a laboratory-confirmed previous dengue virus infection and who live in areas ...
The mosquito species that carries dengue, Aedes aegypti, “are very skittish and adept at hovering around people, looking for the perfect opportunity to land and take a quick bite,” Chad Huff ...
Dengue virus has four confirmed serotypes; infection with one type usually gives lifelong immunity to that type, but only short-term immunity to the others. Subsequent infection with a different type increases the risk of severe complications. [9] The symptoms of dengue resemble many other diseases including malaria, influenza, and Zika. [10]
In a small proportion of cases the disease develops into the life-threatening dengue hemorrhagic fever, resulting in hemorrhage, thrombocytopenia and blood plasma leakage, or into dengue shock syndrome, where shock occurs. Dengue is transmitted by several species of mosquito within the genus Aedes, principally A. aegypti.
The symptoms experienced by those infected with dengue can vary widely: up to 80% of dengue cases are asymptomatic, and while some infections may trigger only flu-like symptoms, more serious cases ...
Mayaro virus disease is a mosquito-borne zoonotic pathogen endemic to certain humid forests of tropical South America. Infection with Mayaro virus causes an acute, self-limited dengue-like illness of 3–5 days' duration. [1] The causative virus, abbreviated MAYV, is in the family Togaviridae, and genus Alphavirus.