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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.
It is not entirely clear why secondary infection with a different strain of dengue virus places people at risk of dengue hemorrhagic fever and dengue shock syndrome. The most widely accepted hypothesis is that of antibody-dependent enhancement (ADE). The exact mechanism behind ADE is unclear.
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]
By the late 1990s, dengue was the most important mosquito-borne disease affecting humans after malaria, with around 40 million cases of dengue fever and several hundred thousand cases of dengue hemorrhagic fever each year. Significant outbreaks of dengue fever tend to occur every five or six months.
This year, the incidence of dengue fever globally has been the highest on record, especially in Latin American countries, where more than 9.7 million dengue cases have been reported. That's twice ...
Dengue fever is a mosquito-borne tropical disease caused by the dengue virus. [1] Symptoms typically begin three to fourteen days after infection. [2] This may include a high fever, headache, vomiting, muscle and joint pains, and a characteristic skin rash.
65,758 cases of dengue fever have been reported up to EW 19 in Mexico, accounting for 0.8% of total cases in Latin America and the Caribbean in 2024. 405 severe cases and 20 deaths have been reported so far in Mexico, with a fatality rate of 0.03%. DENV1, DENV2, DENV3 and DENV4 serotypes have been detected in Mexico. [3]
A viral hemorrhagic fever is a possible cause of the Plague of Athens during the Peloponnesian War. [13] A viral hemorrhagic fever is an alternate theory of the cause of the Black Death and the Plague of Justinian [14] The initial, and currently only, outbreak of Lujo virus in September–October 2008 left four of five patients dead. [15]