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The 2019–2020 dengue fever epidemic was an epidemic of the infectious disease dengue fever in several countries of Southeast Asia, including the Philippines, Malaysia, Vietnam, and Bangladesh, [1] Pakistan, [2] India, Thailand, Singapore, and Laos. [3]
New Delhi: By early October, more than 590 cases of dengue fever were reported from Delhi and over 367 from neighbouring states who had come to New Delhi for treatment. [1] Rajasthan: By 12 September, more than 35 patients were treated for dengue fever. [2] Chandigarh: 159 cases of dengue fever were reported. These were reported from the Post ...
[1] [2] 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 ...
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]
Epidemic dengue has become more common since the 1980s. 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 ...
In May 2016 the World Health Organization declared India free of yaws. [57] India was the first country where yaws was endemic and which eliminated it. [58] This success in India led to excite for other countries to also try to eliminate yaws by year 2020 using techniques which India developed. [59]
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.
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.