Kawasaki Disease is an illness that involves the skin, mouth, and lymph nodes. The disease usually begins with a fever unresponsive to tylenol or aspirin which continues for at least 7 - 10 days. Many but not all children develop a swollen area on the neck which looks like an infection. Some researchers believe it is an infection, others an autoimmune disorder stimulated by an infection or exposure to an environmental toxin. The disease is seen more often in the winter and spring seasons. Kawasaki disease, or mucocutaneous lymph node syndrome, is a disease of unknown etiology that most frequently (80% of the time) affects infants and children under five years of age. Some doctors think it may be caused by a virus or a bacteria. The illness can last from 2 weeks to a few months. Originally, KD was believed to be an acute, self-limiting febrile disease with an excellent prognosis; however, subsequent reports indicated that nearly 2% of patients with KD died from the illness, usually as a result of secondary cardiac sequelae. It was first noticed in Japanese children following World War II. No blood test for Kawasaki disease is available. The diagnosis is based on symptoms.