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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.
Mild cases of dengue fever can easily be confused with several common diseases including Influenza, measles, chikungunya, and zika. [61] [62] Dengue, chikungunya and zika share the same mode of transmission (Aedes mosquitoes) and are often endemic in the same regions, so that it is possible to be infected simultaneously by more than one disease ...
Over the last twenty years, there has been a geographic spread of the disease. Dengue incidence rates have risen sharply within urban areas which have recently become endemic hot spots for the disease. [61] The recent spread of Dengue can also be attributed to rapid population growth, increased coagulation in urban areas, and global travel.
Human infectious diseases may be characterized by their case fatality rate (CFR), the proportion of people diagnosed with a disease who die from it (cf. mortality rate).It should not be confused with the infection fatality rate (IFR), the estimated proportion of people infected by a disease-causing agent, including asymptomatic and undiagnosed infections, who die from the disease.
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 UN agency said the number of cases in the Americas exceeded 7 million by the end of April, already surpassing the annual high of 4.6 million in 2023. In comparison, over 7.6 million dengue ...
In the 2023 dengue outbreak in Jamaica, a significant rise in the number of dengue fever cases was reported in Jamaica. In September 2023 The Ministry of Health and Wellness , Jamaica declared it as an outbreak. [ 1 ]
In neighboring Laos, dengue fever cases exceeded 11,000 by mid-year, with 27 deaths, prompting the Lao Ministry of Health to recommend that likely mosquito breeding sites should be drained. [3] In total, Vietnam had 815,274 infections and 238 deaths of dengue fever from 2019 to 2023.