National Eosinophilia-Myalgia Syndrome Network

The National Eosinophilia-Myalgia Syndrome Network, Inc., is a non-profit (501 C-3) organization dedicated to helping EMS survivors and their families by offering educational information and peer support. Eosinophilia Myalgia Syndrome (EMS; diagnostic code M35.8) is a systemic, immune mediated disease that originally surfaced in the United States as an epidemic in 1989. EMS resulted from ingestion of an amino acid, L-Tryptophan, a popular health food supplement at the time. EMS is highly debilitating and can cause permanent damage. Because there is no cure and the prognosis is unknown, EMS is treated symptomatically.