Table 1.

Similarities and differences in MIS-C and KD.

	MIS-C	KD
Age	0-19 years 8 (median age 8-99)	<5 years 3 (median age 39)
Geographic Area	Europe, North America, South America 9	Asia (Japan, South Korea, Taiwan) 3
Clinical similarities8,10	Fever ⩾ 3 days	Fever ⩾ 5 days
	Rash	Polymorphous rash
	Bilateral non-purulent conjunctivitis	Bilateral non-purulent conjunctivitis
	Mucocutaneous inflammation signs (oral, hands, feet)	Oral mucous membrane changes (cracked and erythematous lips, strawberry tongue)
	Cardiovascular: Features of myocardial dysfunction, pericarditis, valvulitis, or coronary abnormalities	Changes in extremities (erythema of hands and feet, desquamation)
	Gastrointestinal: Diarrhea, vomiting, abdominal pain	Cardiovascular: Coronary artery abnormalities, decreased LV function, mitral regurgitation, pericardial effusion
		Gastrointestinal: Diarrhea, nausea, vomiting, abdominal pain

Abbreviations: KD, Kawasaki disease; LV, left ventricle; MIS-C, multisystem inflammatory syndrome related to COVID-19.