What is the virus or bacteria that causes dengue fever?
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.
Is dengue fever bacterial?
Dengue virus disease (dengue fever, or ‘dengue’) is a viral disease spread by mosquitoes in many tropical and subtropical parts of the world including Africa, Asia, South America and occasionally, some parts of northern Queensland.
Is dengue fever a virus or parasite?
Dengue fever is a viral disease spread only by certain mosquitoes – mostly Aedes aegypti or “dengue mosquitoes”, which are common in tropical areas around the world.
What type of virus is dengue virus?
Dengue virus (DENV) belongs to the family Flaviviridae, genus Flavivirus. It is a single-stranded positive-sense ribonucleic acid virus with 10,700 bases. The genus Flavivirus includes other arthropod borne viruses such as yellow fever virus, West Nile virus, Zika virus, tick-borne encephalitis virus.
What is dengue fever caused by?
Dengue fever is caused by any one of four types of dengue viruses. You can’t get dengue fever from being around an infected person. Instead, dengue fever is spread through mosquito bites. The two types of mosquitoes that most often spread the dengue viruses are common both in and around human lodgings.
Why is dengue fever called dengue?
Both explanations seem to indicate the disease is named after one of its visible symptoms, tender movements caused by the extreme pain one suffers from the muscle, bone, and joint inflammation. It was called dandy fever in Barbados “from the stiffened forms and dread of motion in patients.”
Is influenza caused by bacteria?
The flu (also called influenza) is a common illness caused by a virus. Other viruses and some bacteria can cause infections with similar symptoms, but the flu is always viral. Getting a vaccine (if available) is the best way to prevent any infection.
How did dengue virus 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 is the main cause of dengue fever?
Is dengue RNA or DNA virus?
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.
What are the 4 types of dengue virus?
There are four dengue virus serotypes: DENV-1, DENV-2, DENV-3, and DENV-4. They belong to the genus Flavivirus, family Flaviviridae (of which yellow fever virus is the type species), which contains approximately 53 viruses.
Who carries dengue virus?
The dengue virus is carried and spread by mosquitoes in the genus Aedes, which includes a number of mosquito species. Of these species, the primary vector of the dengue virus is the species Aedes aegypti.
How do you get dengue virus?
Is spread through the bite of an infected mosquito. Dengue viruses are spread to people through the bite of an infected Aedes species (Ae. aegypti or Ae. albopictus) mosquito. Dengue is common in more than 100 countries around the world.
What increases my risk for severe dengue?
The risk for severe dengue increases with each infection. Dengue is spread by the same kind of mosquito that spreads the Zika virus and the virus that causes yellow fever. The viruses that cause dengue fever are spread by mosquitoes of the species Aedes aegypti, and sometimes also by Aedes albopictus.
What is the meaning of dengue fever?
Dengue fever. Overview. Dengue (DENG-gey) fever is a mosquito-borne disease that occurs in tropical and subtropical areas of the world. Mild dengue fever causes a high fever, rash, and muscle and joint pain.
How long does it take to recover from dengue?
Dengue fever is a mosquito-borne tropical disease caused by the dengue virus. Symptoms typically begin three to fourteen days after infection. These may include a high fever, headache, vomiting, muscle and joint pains, and a characteristic skin rash. Recovery generally takes two to seven days.