We don't have synonyms for kawasaki yet — it may be a rare, specialized, newly coined, or misspelled word. The closest thesaurus entries we have are nagasaki, iwasaki and yamasaki.
(n) :
(uncountable) Ellipsis of Kawasaki disease. [(medicine) An illness of childhood that causes fever, lymphadenopathy, elevated platelet count, and a variety of other symptoms.]
(n) :
(uncountable) Ellipsis of Kawasaki disease. [(medicine) An illness of childhood that causes fever, lymphadenopathy, elevated platelet count, and a variety of other symptoms.]