Acute disseminated encephalomyelitis (ADEM) is characterized by a brief but intense attack of inflammation in the brain and spinal cord that damages myelin. Myelin is the protective covering of nerve fibers. Viral infection or vaccination can trigger ADEM. Symptoms include fever, fatigue, headache, nausea and vomiting, seizures, coma, vision loss, weakness even to the point of paralysis, and difficulty coordinating voluntary muscle movements (such as those used in walking). ADEM is sometimes diagnosed as a severe first attack of multiple sclerosis (MS), since some of the symptoms of the two disorders, particularly those caused by demyelination, overlap. However, ADEM usually has symptoms of encephalitis (such as fever or coma), as well as symptoms of myelin damage (visual loss, paralysis), as opposed to MS, which usually doesn't have encephalitis-like symptoms. In addition, ADEM usually consists of a single episode or attack, while MS features many attacks over the course of time. MS, like ADEM, can also be triggered by viral infection or vaccination.
Corticosteroid therapy can shorten the duration of neurological symptoms of ADEM and halt
Maglio Christopher & Toale, P.A. has represented a number of patients that have obtained compensation for injuries resulting from ADEM following vaccination. Vaccines that may cause ADEM may include the flu shot, Gardasil vaccine, Menactra vaccine, Measles Mumps and Rubella (MMR) vaccine, and Hepatitis B vaccine among others.