What is dengue virus Wikipedia?
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. Four serotypes of the virus have been found, a reported fifth has yet to be confirmed, all of which can cause the full spectrum of disease.
What is dengue summary?
Dengue is a viral infection transmitted to humans through the bite of infected mosquitoes. The primary vectors that transmit the disease are Aedes aegypti mosquitoes and, to a lesser extent, Ae. albopictus. The virus responsible for causing dengue, is called dengue virus (DENV).
How did dengue start?
Dengue originated in monkeys and spilled over into humans as long as 800 years ago. It was restricted to Africa and Southeast Asia until the mid-20th century. The dengue viruses in viremic individuals and their Aedes aegypti mosquito vectors spread throughout tropical Southeast Asia via maritime shipments.
What type of disease is dengue?
Dengue (DENG-gey) fever 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.
Where is dengue most common?
The disease is common in many popular tourist destinations in the Caribbean (including Puerto Rico), Central and South America, Southeast Asia, and the Pacific Islands. In the United States, local cases and limited spread of dengue does occur periodically in some states with hot, humid climates and Aedes mosquitoes.
What are the effects of dengue?
The most common symptom of dengue is fever with any of the following: Nausea, vomiting. Rash. Aches and pains (eye pain, typically behind the eyes, muscle, joint, or bone pain)
Is dengue a virus or bacteria?
Dengue is caused by a virus of the Flaviviridae family, Flavivirus genus which includes viruses such as yellow fever, West Nile and tick-borne encephalitis. There are four distinct dengue viruses without cross immunity. People can have up to four dengue infections in their lifetime.
Who found dengue?
Discovery of the Dengue Viruses In 1943, Ren Kimura and Susumu Hotta first isolated the dengue virus. These two scientists were studying blood samples of patients taken during the 1943 dengue epidemic in Nagasaki, Japan. A year later, Albert B. Sabin and Walter Schlesinger independently isolated the dengue virus.
Why is it called dengue?
The word “dengue” is derived from the Swahili phrase Ka-dinga pepo, meaning “cramp-like seizure”. The first clinically recognized dengue epidemics occurred almost simultaneously in Asia, Africa, and North America in the 1780s.
Who Discovered dengue?
What are the three types of dengue?
There are four serotypes (DENV-1, -2, -3, and -4), and the virus is transmitted to humans through the bite of mosquitoes of the genus Aedes (5). DENV causes a wide spectrum of clinical manifestations, from DF to dengue hemorrhagic fever (DHF), which may progress to dengue shock syndrome (DSS) (20, 43).
What is the prevalence of dengue fever in Singapore?
In Singapore, there are 4,000–5,000 reported cases of dengue fever or dengue haemorrhagic fever every year.
How many cases of dengue are there in Asia?
^ “Dengue in Asia: Updated case counts for Thailand, the Philippines, Taiwan, Malaysia and others”. 2015-11-18. ^ “Dengue fever cases exceed 38,000, concentrated in southern Taiwan | Society | FOCUS TAIWAN – CNA ENGLISH NEWS”. ^ “Seven new confirmed Dengue Fever cases bring total to 202 Friday (Jan 1)”.
What is the history of dengue hemorrhagic fever (dengue)?
Dengue hemorrhagic fever and dengue shock syndrome were first noted in Central and South America in 1981, as DENV-2 was contracted by people who had previously been infected with DENV-1 several years earlier.
What is the pathophysiology of dengue?
Dengue virus is primarily transmitted by Aedes mosquitos, particularly A. aegypti. These mosquitos usually live between the latitudes of 35° North and 35° South below an elevation of 1,000 metres (3,300 ft). They typically bite during the early morning and in the evening, but they may bite and thus spread infection at any time of day.