Kawasaki Disease may start from an infection or from exposure to some toxin

According to the Maryland Department of Health and Mental Hygiene, "No one knows what causes Kawasaki disease, but it is thought to start from an infection or from exposure to some toxin. There is no firm evidence that the disease can spread from one person to another."

"This disease primarily affects children under the age of 5. Most cases occur in 1 to 2 year old children. Asian children are more prone to get Kawasaki disease than non-Asian children. The disease is seen more often in the winter and spring seasons."