Kawasaki Disease in Infancy.

Kawasaki disease (KD) is an acute vasculitis that primarily affects young children and, if untreated, is associated with development of coronary artery aneurysms in approximately 25% of those affected. Infants, especially those younger than 6 months, often have atypical (incomplete) presentations of KD and are most at risk for development of aneurysms. Identification of KD requires a careful and thorough history and physical examination because multiple other conditions cause similar findings. Providers in acute care settings need to have a high degree of suspicion for KD so that those affected may receive appropriate and timely treatment.