• median age was 9 years (IQR, 5.7-14; range, 3 months-17 years)

• 33 were girls (57%)

• 40 (69%) were of black or Asian race

• only 7 had comorbidities, including 3 with asthma, 1 with neurodisability, 1 with epilepsy, 1 with sickle cell trait, and 1 with alopecia

• 100% of patients presented with persistent fever for 3 to 19 days and variable combinations of s

• sore throat (n = 6 [10%])

• headache (n = 15 [26%])

• abdominal pain (n = 31 [53%])

• erythematous rashes were present in 30 (52%)

• conjunctival injection was noted in 26 (45%)

• lymphadenopathy in 9 (16%)

• mucus membrane changes and red cracked lips in 17 (29%)

• swollen hands and feet in 9 (16%).

Admission to pediatric critical care units was required in 29 patients (50%) and 13 (22%) developed acute kidney injury. Shock requiring inotropic support was present in 27 patients (47%). Mechanical ventilation was used for respiratory support in 25 patients (43%)