Changes

Encephalitis is an inflammation of the brain caused by a virus.  

Encephalitis is an inflammation of the brain caused by a [[virus]].  

Encephalitis can result in permanent brain damage or death.<ref>http://www.cdc.gov/vaccines/about/terms/glossary.htm#e</ref>

Encephalitis can result in permanent brain damage or death.<ref>http://www.cdc.gov/vaccines/about/terms/glossary.htm#e</ref>