What is dengue?

Dengue (or dengue fever) is a disease spread to humans by mosquito bites, and is caused by one of four types of dengue viruses. It can cause severe flu-like symptoms and in severe cases can be fatal.
There is no vaccine or medication that protects against dengue fever.

What is my risk? 

All travellers are at risk in areas where dengue occurs.
The risk is higher during the daytime, particularly around sunrise and sunset. Mosquitoes that can transmit dengue bite even in shady areas, when it is overcast, or if you are indoors.
The risk is lower for travellers who stay only a few days in air-conditioned hotels with well-kept grounds and who participate in outdoor activities during non-peak biting periods. The risk increases for those spending longer periods of time in areas where dengue occurs, including aid and humanitarian workers and/or those who stay in the home of friends and relatives.
A person who recovers from one of the four types of dengue will have lifelong immunity against that particular type but not against the others. 

How is it transmitted?  

What are the symptoms?

Can dengue fever be treated?

There is no specific treatment for dengue fever but medical care can help with recovery and the control of symptoms.

Where is dengue fever a concern?


Consult a health care provider or visit a travel health clinic preferably six weeks before you travel.

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