Dengue Fever

Dengue fever is a flu-like illness. Dengue hemorrhagic fever is a severe, and potentially fatal, complication of dengue. Both versions can be caused by a number of viruses in the dengue family of viruses. Infection with one virus does not protect a person against infection with another. Dengue fever is spread by the bite of infected Aedes mosquitoes. Anyone who is bitten by an infected mosquito can get dengue fever.

Dengue outbreaks occasionally occur in the continental United States.
Dengue is common in the U.S. territories of American Samoa, Puerto Rico, and the U.S. Virgin Islands, and the freely associated states, including the Federated States of Micronesia, the Republic of Marshall Islands, and the Republic of Palau.
Most dengue cases reported in the 49 continental US states occur in travelers infected elsewhere.
Because the types of mosquitoes that spread dengue are common throughout many areas of the United States, local spread of dengue is possible.
- Most outbreaks in the continental United States have been relatively small and limited.

Prevent dengue by avoiding mosquito bites.
The mosquitoes that spread dengue are found in most tropical and subtropical regions of the world, including many parts of the United States.
A dengue vaccine is now recommended for U.S. territories of American Samoa, Puerto Rico, and the U.S. Virgin Islands, and freely associated states, including the Federated States of Micronesia, the Republic of Marshall Islands, and the Republic of Palau.

See a health care provider if you develop a fever or have symptoms of dengue. Tell him or her about your travel.
Rest as much as possible.
Take acetaminophen (also known as paracetamol outside of the United States) to control fever and relieve pain.
- Do not take aspirin or ibuprofen!
Drink plenty of fluids to stay hydrated. Drink water or drinks with added electrolytes.
For mild symptoms, stay at home.

Dengue Fever

Who is at risk for dengue?

What can I do to prevent infection of dengue?

What do I do if I believe I am ill with dengue?

Resources