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Dengue

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What is dengue fever?
Dengue fever is flu-like illness spread by bite of an infected mosquito.
What is dengue hemorrhagic fever?
Dengue hemorrhagic fever is a severe, often fatal, complication of dengue fever.
How is dengue spread?
Dengue is spread by bite of an Aedes mosquito.
The mosquitoes that transmit dengue live among humans and breed in discarded tires, flower pots, old oil drums, and water storage containers close to human dwellings. Unlike the mosquitoes that cause malaria, dengue mosquitoes bite during the day.

Signs and symptoms
Dengue fever usually starts suddenly with:
* High fever.
* Rash.
* Severe headache.
* Pain behind the eyes.
* Muscle and joint pain; the severity pf the joint pain has given dengue the name "break bone fever"
* Nausea, vomiting.
* Loss of appetite is common.
* A rash usually appears 3 to 4 days after the start of the fever.
Who is at risk for dengue?
Anyone who is bitten by an infected mosquito can get dengue fever. Risk factors for dengue hemorrhagic fever include a person's age and immune status, as well as the type on infecting virus. Persons who were previously infected with one or more types of dengue virus are thought to be at greater risk for developing dengue hemorrhagic fever if infected again.
Treatment
There is no specific treatment for dengue. Persons with dengue fever should rest and drink plenty of fluids. They should be kept away from mosquitoes for the protection of others. Dengue hemorrhagic fever is treated by replacing lost fluids. Some patients need transfusions to control bleeding.
How dengue can be prevented?
There is no vaccine to prevent dengue. Prevention centers on avoiding mosquito bites when traveling to areas where dengue occurs. Eliminating mosquito breeding sites in these areas is another key prevention measure.

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