Dengue fever is transmitted by the bite of an Aedes mosquito infected with a dengue virus.

The mosquito becomes infected when it bites a person with dengue virus in their blood.

It can’t be spread directly from one person to another person.

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Sign and symptoms of dengue

Dengue patients repeated attacks of chills, facial flushing, with non-specific febrile syndrome which may accompanied by maculopapular rashes.

Other symptoms may include –

  1. Headache
  2. Nausea and vomiting
  3. Severe myalgia
  4. Retro orbital pain
  5. Skin Rashes
  6. Constipation
  7. Colicky pain
  8. Abdominal tenderness
  9. Arthralgia of knee and shoulder
  10. Anorexia
  11. Weakness
  12. Sore throat
  13. Mild haemorrhagic manifestations (epistaxis, haematuria)
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      How to protect yourself?

      • Stay away from heavily populated residential areas, if possible.
      • Use mosquito repellents, even indoors.
      • When outdoors, wear long-sleeved shirts and long pants tucked into socks.
      • When indoors, use air conditioning if available.
      • Make sure window and door screens are secure and free of holes. If sleeping areas are not screened or air conditioned, use mosquito nets.

      Diagnosis of dengue

      In order for a doctor to properly diagnose dengue fever they will:

      • Assess the symptoms
      • Blood sample
      • Assess medical history

      Treatment and prevention of dengue fever

      • Prevent dehydration – high fever and vomiting can dehydrate the body. Make sure to drink clean (ideally bottled) water rather than tap water. Rehydration salts can also help replace fluids and minerals.
      • Painkillers– this can help lower fever and ease pain. As some NSAIDs (non-steroidal anti-inflammatory drugs)

      The following treatment options are designed for the more severe forms of dengue fever:

      • Intravenous fluid supplementation (IV drip)
      • Blood transfusion 
      • Hospital care