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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. These may include a high fever, headache, vomiting, muscle and joint pains, and a characteristic skin itching and skin rash. Recovery ...
Changes over the years reflect the new discoveries of infectious agents over the past century. The second edition in 1926 included 42 diseases, but only two arthropod (usually mosquito) - borne diseases, yellow and dengue fever and one protozoan disease, malaria. The causative organism of smallpox, dengue and chickenpox was listed as 'unknown.'
The second dengue virus infection can be fatal, especially if the infected person develops severe dengue. The World Health Organization (WHO) has noted that having a previous infection with the dengue virus significantly increases the risk of developing severe dengue. This risk increases considerably even further if the second infection is ...
Most dengue fever patients recover in a week, but in severe cases the disease can be life-threatening and require hospitalization since it can result in shock, internal bleeding and even death.
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 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]
Where the mothers develop the disease between 5 days prior to, or 2 days after delivery. [17]: 110 Dengue haemorrhagic fever (DHF) Viral Untreated 26% Dengue haemorrhagic fever is also known as severe dengue. [33] [34] Murray Valley encephalitis (MVE) Viral No cure [15–30]% No specific treatment; usually involves supportive care. [35]
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 ...