What is dengue fever?

Dengue (say "DEN-gay") fever is a disease caused by a virus that is carried by mosquitoes. Mild cases cause a rash and flu-like symptoms. Some people, especially children, can get more serious forms of the illness, known as dengue hemorrhagic fever and dengue shock syndrome.

Symptoms of dengue fever may be mild or severe. In mild cases, common symptoms include:

• A sudden high fever, up to 106 F (41 C) .
• A headache.
• Eye pain.
• Joint and muscle pain.
• A rash.
• Nausea, vomiting, and loss of appetite.

The fever usually lasts up to a week and may come and go.

After the initial fever, some people may have more serious symptoms that may be signs of dengue hemorrhagic fever. These can include:

• Signs of bleeding, such as:
  • Red patches that may look like bruises or tiny red spots.
  • Bleeding from the nose, mouth, or gums.
  • Vomiting blood.
  • Stools that look like black tar.
• Severe belly pain.
• Signs of shock.

Your doctor will ask about your symptoms and any recent travel. The doctor may order a blood test to confirm whether you have dengue fever.

There is no medicine for treating dengue fever. Mild cases may be treated at home with rest and plenty of fluids to prevent dehydration. You may take acetaminophen (Tylenol) for pain. But don't take anti-inflammatory medicines like aspirin, ibuprofen (such as Advil or Motrin), or naproxen (such as Aleve). They may increase the risk of bleeding. Be safe with medicines. Read and follow all instructions on the label. People with mild cases of dengue fever usually feel better within 2 weeks.

Dengue hemorrhagic fever, the more serious form of dengue fever, usually requires treatment in a hospital. You may need intravenous (I.V.) fluids to treat dehydration. You also may need a blood transfusion to replace lost blood. You will be closely watched for signs of shock.