Encephalitis is a viral infection, or an inflammation, of the brain. The viral infection that causes encephalitis may be the primary cause or a secondary complication. Viruses that cause primary encephalitis may be epidemic, such as polio, or sporadic, such as herpes simplex, varicella zoster, or mumps.
Secondary encephalitis is usually a complication of a viral infection.
The following are the most common symptoms of encephalitis. However, each individual may experience symptoms differently. The symptoms of encephalitis may resemble other conditions or medical problems. Consult a physician for diagnosis. We regret that we can't answer medical questions via e-mail.