The etiology of Kawasaki disease is largely unknown despite the various suggested hypotheses. Based on epidemiologic and clinical manifestations, it is thought that Kawasaki disease is caused by some infectious agents (3) (4) (5) (6) (7) (8) (9) (10) . Hypercytokinemia and hyperchemokinemia have also been observed and are thought to cause vascular injuries by inflammatory reaction and immunologic activation (11) . Genetic factors are also thought to have influences on the development and progress of Kawasaki disease (12, 13) . Up to present days, Kawasaki disease is thought to be an infectious disease manifested by immunologic reaction in genetically susceptable person.