परिभाषा

Encephalitis is inflammation of the brain. Certain mosquito-borne viruses can lead to encephalitis. Examples of these viruses include:

  • West Nile encephalitis
  • Eastern equine encephalitis
  • Western equine encephalitis
  • St. Louis encephalitis
  • La Crosse encephalitis
  • Japanese encephalitis
  • Venezuelan equine encephalitis

Mosquito Borne Viral Encephalitis

का कारण बनता है

The most common cause is being bitten by an infected mosquito. There are other, rarer causes, such having a blood transfusion with infected blood.

जोखिम कारक

The greatest risk factors are spending time in areas where mosquitoes are present and not using insect repellent.

People who are age 50 years and older and those with a weakened immune system have a higher risk of developing serious symptoms.

लक्षण

Most people who become infected with one of these mosquito-borne viruses do not develop any symptoms.

If symptoms do occur, they are generally mild and may include flu-like symptoms, such as:

  • सिरदर्द
  • बुखार
  • Chills
  • थकान
  • जोड़ों और मांसपेशियों में दर्द
  • उल्टी करना

While rare, a small percentage of people develop encephalitis and have serious, life-threatening symptoms, such as:

  • High fever
  • भटकाव
  • दृष्टि खोना
  • पक्षाघात
  • बरामदगी
  • Coma

निदान

आपका मेडिकल इतिहास लेने और शारीरिक परीक्षण करने के अलावा, आपका डॉक्टर आपसे पूछेगा:

  • आप किस तरह के लक्षण अनुभव कर रहे हैं
  • आप कहां रह रहे हैं या यात्रा कर रहे हैं
  • चाहे आप मच्छरों के संपर्क में आये हों

A blood test is commonly used to confirm the diagnosis of a mosquito-borne virus. Depending on the symptoms that you have, your doctor may order other tests, such as:

  • एमआरआई स्कैन - एक परीक्षण जो सिर के अंदर संरचनाओं की तस्वीरें लेने के लिए चुंबकीय तरंगों का उपयोग करता है
  • CT scan —a type of x-ray that uses computers to make pictures of structures inside the head
  • मस्तिष्कमेरु द्रव विश्लेषण

उपचार

Treatment focuses on supportive care, such as taking pain relieving medicines and replenishing fluids so that you are not dehydrated.

Severe symptoms require hospitalization, which may include:

  • यांत्रिक वेंटिलेशन (श्वास सहायता)
  • Fluids given intravenously (through a vein in your arm)
  • दौरे को नियंत्रित करने की दवा
  • मस्तिष्क की सूजन कम करने की दवा

रोकथाम

The best way to reduce your chances of getting mosquito-borne viral encephalitis is to avoid being bitten by mosquitoes. Steps that can help include:

  • Limiting outside activities where mosquitoes are present
  • Wearing long sleeve shirts and long pants at dusk and dawn, when mosquitoes are most active
  • Using bug repellent that contains DEET
  • Emptying sources of standing water around the home, such as bird baths and gutters, where mosquitoes may breed
  • Repairing screens on your windows and doors to prevent mosquitoes from getting into your house

Mosquitoes can contract viruses by biting infected birds. If you see a dead bird, call the public health department. Do not touch the dead bird unless you are wearing disposable gloves.

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