"This public use dataset includes case-level data from confirmed MIS-C cases with illness onset February 2020 through December 2022 that were reported to CDC’s National MIS-C Surveillance system. Reports are from 55 U.S. jurisdictions (all 50 states plus New York City, Guam, Puerto Rico, US Virgin Islands, and Washington DC). All cases meet the 2020 CDC MIS-C case definition. U.S. jurisdictions voluntarily report potential MIS-C cases to CDC using a standardized case report form.

To protect patient privacy, location information has been consolidated to census region, illness onset dates have been abbreviated to month-year, and age ranges are provided. The dataset was further deidentified by implementing a k-anonymity threshold of k=3, and suppressing data for Census Region using primary and complementary suppression to protect patient privacy. The following data are included: patient demographics, timing of illness onset, outcomes, organ system involvement, SARS CoV-2 testing, comorbidities, treatment, and COVID-19 vaccination information. “Case definition” organ system involvement is defined according to 2020 CDC MIS-C case definition criteria. “Severe organ involvement” is a subset of case definition organ involvement composed of more severe MIS-C organ manifestations. This definition has been used in several prior publications and is written out in supplemental materials."

Tags: covid-19, sars-cov-2, surveillance, mis-c, pediatric, children, multisystem inflammatory syndrome

Last updated: 2026-01-09 17:15:07+00:00