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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]
The process of climate change has produced abundant rains and high temperatures, (a phenomenon called tropicalization) favouring the reproduction of the mosquito that transmits the dengue virus, advancing the epidemic this year by several weeks compared to previous seasons, which historically, Infection peaks tended to occur between March and April, suggesting a continued increase in cases. [11]
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.
Treatment of acute dengue is supportive, using either oral or intravenous rehydration for mild or moderate disease, and intravenous fluids and blood transfusion for more severe cases. The incidence of dengue fever has increased dramatically since the 1960s, with around 50–100 million people infected yearly. Early descriptions of the condition ...
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Mosquito vectors are sensitive to climate changes and tend to follow seasonal patterns. Between years there are often dramatic shifts in incidence rates. The occurrence of this phenomenon in endemic areas makes mosquito-borne viruses difficult to treat. [57] Dengue fever is caused by infection through viruses of the family Flaviviridae.
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 .