This study was a case series of 58 hospitalized children throughout England admitted between March 23 and May 16, 2020. The children had persistent fever and met laboratory criteria for PIMS-TS, or "pediatric inflammatory multisystem syndrome temporally associated with severe acute respiratory syndrome coronavirus 2." Clinical and laboratory characteristics were abstracted by medical record review, and were compared with clinical characteristics of patients with Kawasaki disease (KD) (n = 1132), KD shock syndrome (n = 45), and toxic shock syndrome (n = 37) who had been admitted to hospitals in Europe and the US from 2002 to 2019.

In total, 45 of 58 patients (78%) had evidence of current or prior SARS-CoV-2 infection.