Dengue (pronounced den' gee) is:

  • A virus that is spread through mosquito bites - the same Aedes mosquitoes that can spread chikungunya.

Signs & Symptoms

The principal symptoms of dengue are:
  • High fever and at least two of the following:
    • Joint pain
    • Low white cell count
    • Mild bleeding manifestation (e.g., nose or gum bleed, petechiae, or easy bruising)
    • Muscle and/or bone pain
    • Rash
    • Severe eye pain (behind eyes)
    • Severe headache
Generally, younger children and those with their first dengue infection have a milder illness than older children and adults.

Note: Watch for warning signs as temperature declines 3 to 7 days after symptoms began.

Warning Signs

Go immediately to an emergency room or the closest health care provider if any of the following warning signs appear:
  • Black, tarry stools (feces, excrement)
  • Bleeding from nose or gums
  • Difficulty breathing
  • Drowsiness or irritability
  • Pale, cold, or clammy skin
  • Red spots or patches on the skin
  • Severe abdominal pain or persistent vomiting
  • Vomiting blood