Types of encephalitis: A Mayo Clinic expert explains

Editor's note: February 22 is World Encephalitis Day. Encephalitis is a disease referring to the inflammation or swelling of the brain. Broadly, it can happen because of infections, including viral infections, or the immune system acting up.  That's why Dr. Sarosh Irani, a Mayo Clinic neurologist and researcher, says it's essential to recognize World Encephalitis Day. "A number of physicians, and certainly the public, are not aware of encephalitis as an entity. Yet, it is a medical emergency,…
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