Fellowed applies Royal Children's Hospital / AHA-aligned Kawasaki disease criteria. Complete KD uses fever for ≥4 days, with illness day 1 counted as the first calendar day of fever, plus ≥4 of the 5 principal clinical feature groups at any point during the illness.

Component	Definition (summary)
Fever	Fever for ≥4 days in the RCH complete-KD pathway. AHA classic criteria usually use fever for at least 5 days, but allow 4 days when typical features are present.
Oral changes	Erythematous or cracked lips, strawberry tongue, or diffuse erythema of oral and pharyngeal mucosa.
Conjunctivitis	Bilateral bulbar conjunctival injection without exudate.
Rash	Polymorphous rash.
Extremity changes	Acute hand or foot erythema/oedema and/or later periungual desquamation.
Cervical lymphadenopathy	Cervical lymph node ≥1.5 cm, usually unilateral.
Coronary abnormality	Coronary artery aneurysm or dilation by echocardiography/angiography supports KD and incomplete-KD pathways.

Complete KD criteria are met when the fever criterion is met and ≥4 principal feature groups are present. With the fever criterion met, coronary abnormality supports KD even when fewer principal features are present. Two or three principal features should prompt the incomplete-KD pathway.

Kawasaki Disease Diagnostic Criteria