Final answer:
Kawasaki Syndrome and Scarlet Fever both have a characteristic skin rash, but Kawasaki Syndrome is distinguished by a high fever and inflammation of blood vessels, while Scarlet Fever is caused by streptococcal infection and presents with sore throat and a red rash.
Step-by-step explanation:
The characteristic feature of Kawasaki Syndrome, which is occasionally confused with Scarlet Fever due to some overlapping symptoms, is skin rash (option D). It's important to note that Kawasaki Syndrome and Scarlet Fever are distinct illnesses. Kawasaki Syndrome (also known as Kawasaki Disease) is a rare childhood illness characterized by inflammation of blood vessels throughout the body, which can affect the heart. One of its hallmark signs is a high fever that lasts more than five days, accompanied by a macular or papular skin rash that typically appears three to five days after the fever begins. Scarlet Fever, on the other hand, also involves a skin rash and is caused by an infection with group A Streptococcus bacteria. It commonly presents with a high fever, sore throat, inflammation of the pharynx and tonsils, and a red rash that gives the skin a scarlet-colored appearance.