Mosquito-borne viral encephalitis digital illustration

Mosquito-borne viral encephalitis Save

ICD-10 code: A83

Chapter: Certain infectious and parasitic diseases

Mosquito-borne Viral Encephalitis: Causes, Symptoms, and Prevention

Mosquito-borne viral encephalitis is a condition caused by the inflammation of the brain due to a viral infection transmitted by mosquitoes. This disease can be life-threatening and can cause permanent damage to the brain, making it important to understand its causes, symptoms, and prevention methods.

Causes of Mosquito-borne Viral Encephalitis

Mosquito-borne viral encephalitis is caused by several types of viruses, including West Nile virus, Eastern equine encephalitis virus, and Japanese encephalitis virus. These viruses are transmitted to humans by the bite of infected mosquitoes, which are typically found in areas with warm and humid climates.

Symptoms of Mosquito-borne Viral Encephalitis

The symptoms of mosquito-borne viral encephalitis can vary depending on the type of virus and the severity of the infection. Some common symptoms include:

  1. Headache
  2. Fever
  3. Nausea and vomiting
  4. Stiff neck
  5. Confusion
  6. Seizures
  7. Coma

If you experience any of these symptoms, it is important to seek medical attention immediately, as early treatment can help prevent permanent brain damage and even death.

Prevention of Mosquito-borne Viral Encephalitis

The best way to prevent mosquito-borne viral encephalitis is to avoid getting bitten by infected mosquitoes. This can be achieved by following these simple steps:

  1. Use mosquito repellent containing DEET or other effective ingredients.
  2. Wear long-sleeved shirts and pants to cover your skin when outside.
  3. Use screens on windows and doors to prevent mosquitoes from entering your home.
  4. Get rid of standing water around your home, such as in flower pots, bird baths, and gutters.
  5. Avoid outdoor activities during peak mosquito hours, which are typically dawn and dusk.

By following these prevention methods, you can significantly reduce your risk of contracting mosquito-borne viral encephalitis.


Mosquito-borne viral encephalitis is a serious condition that can have debilitating consequences if left untreated. By understanding its causes, symptoms, and prevention methods, you can protect yourself and your loved ones from this disease and enjoy the outdoors safely.