autoimmune encephalitis AE YL Autoimmune Encephalitis may be triggered by infection in which case the term "Post-infectious Encephalitis" is used. ADEM( Acute Disseminated Encephalomyelitis ) is a Post-infectious Encephalitis. The illness usually follows in the wake of a mild viral infection (such as those that cause rashes in childhood) or immunisations. Typically there is a delay of days to two to three weeks between the triggering infection and development of the encephalitis. It has recently been recognised that there are other types of Autoimmune Encephalitis resulting from an attack of the brain by the body's immune system. Some of these types of autoimmune encephalitis are identified by finding a specific antibody in blood. These conditions include Potassium channel complex antibody associated encephalitis, NMDAR and Hashimoto's encephalitis. http://www.encephalitis.info/information/the-illness/types-of-autoimmune-encephalitis/ an adverse event that is a type of encephalitis triggered by vaccination. autoimmune disorder AE