Does Kawasaki disease always present with a low-grade fever?

Kawasaki disease does not always present with a low-grade fever all the time; it often starts with a high fever and recurrent fever.
Kawasaki disease is also known as mucocutaneous lymph node syndrome. The exact etiology is unknown, but it is most often accompanied by symptoms of antecedent infection. It presents as an acute febrile rash of pediatric disease with systemic vasculitis as the primary lesion.
Kawasaki disease usually starts with a high fever that lasts for more than 5 days, and in some cases for about 2 weeks. The fever improves during the illness, but there is a persistent or intermittent low-grade fever, and antipyretic medications have only a short-lived effect.
Kawasaki disease is typically a systemic inflammatory disease with recurrent fever.
Some children with Kawasaki disease may develop dilated coronary arteries, which can lead to life-threatening coronary aneurysms. Once a diagnosis of Kawasaki disease is made, it is important to seek medical attention to avoid serious complications.