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Encephalitis Causes & Symptoms from a Vaccine

Encephalitis has been found to be triggered by adverse reactions to vaccinations, most commonly the TDaP/DTaP and MMR vaccines.  If you or your child have been diagnosed with Encephalitis following a vaccination, you may be entitled to compensation.  Our firm has successfully recovered millions of dollars in compensation for individuals across the country who have suffered from Encephalitis following a vaccination.


encephalitis symptoms

Encephalitis is inflammation of the brain.  Encephalitis can occur after a vaccine triggers a reaction that makes the immune system attack brain tissue. The condition often manifests as flu-like symptoms including fever, headache, fatigue, and muscle and joint aches.  In severe cases, individuals may experience seizures, difficulty with vision, hearing, and speech, and loss of consciousness.  If left untreated, Encephalitis can permanently injure the brain and result in coma or even death. 


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If a doctor suspects Encephalitis, an MRI of the brain and a spinal tap (lumbar puncture) are commonly performed.  An MRI can detect any abnormalities or swelling.  A spinal tap is done to obtain a sample of cerebrospinal fluid, the protective fluid that surrounds the brain and spinal cord.  If the number of white blood cells in the sample is high, there is strong indication that there is inflammation in the brain and meninges. 



Most cases of Encephalitis require antiviral treatment.  More severe cases can require:

  • Hospitalization
  • Plasma exchange to remove abnormal antibodies 
  • Intravenous Immunoglobulin ("IVIG") treatment 
  • Anticonvulsants to prevent seizures
  • Corticosteroids to reduce swelling and pressure, and 
  • Breathing assistance 


COmpensation for Encephalitis injuries

If you or your child have received a TDaP/DTaP, MMR, or another vaccine and were subsequently diagnosed with Encephalitis, you may be eligible for compensation from a federal trust fund called the National Vaccine Injury Compensation Program. Call us today for a free case evaluation with one of our vaccine injury lawyers.


Page last reviewed and updated: November 20, 2020

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