The COVID-19 pandemic has affected more than 29 million people in the US and caused more than 540 000 deaths as of March 2021 according to the US Centers for Disease Control and Prevention (CDC). 1 In adults, the most severe manifestation of COVID-19 is acute respiratory distress syndrome, which occurs most commonly among older individuals with underlying medical comorbidities. A notable feature of COVID-19 is that children have been relatively spared compared with adults, as children younger than 18 years only represent 11% of those with COVID-19 infection and 0.1% of deaths in the US. 1 A second notable feature of COVID-19 is that Black and Hispanic individuals bear a disproportionate burden of disease and adverse outcomes compared with White and Asian individuals, and unfortunately, children from racial and ethnic minority groups also bear this burden. 1 Black and Hispanic children are infected and die of COVID-19 at higher rates relative to their representation in the population and, strikingly, make up the overwhelming majority (66%) of those who develop a newly emerging life-threatening condition, multisystem inflammatory syndrome in children (MIS-C). 1,2 MIS-C was first reported in April 2020 after multiple previously healthy children presented with cardiovascular shock, fever, and hyperinflammation in the United Kingdom. In May 2020, the CDC issued a national health advisory for MIS-C, which is now characterized by fever, multiorgan (2 or more) system involvement (cardiac, kidney, respiratory, hematologic, gastrointestinal, dermatologic, or neurological), and clinically severe illness requiring hospitalization. 2,3 The etiology of MIS-C seems to be postinfectious, as most children with MIS-C test positive for antibodies against SARS-CoV-2. [2][3][4] Cellular profiling in children with MIS-C has revealed an immune-driven pathophysiology, evident by drastic elevations in inflammatory mediators and a distinct immune signature suggestive of lymphocytic and myeloid activation and mucosal immune dysregulation. 4 Interestingly, autoantibodies have also been implicated in disease pathogenesis, as autoantigen reactivity to endothelial, gastrointestinal, and immune cell antigens can be detected in plasma in children with MIS-C. 4 Although we suspect that MIS-C is driven by an aberrant immune response to SARS-CoV-2 infection, we still do not know why some children are susceptible to MIS-C after SARS-CoV-2 infection while others are not. Furthermore, the cause for differential rates of MIS-C among Black and Hispanic children remains unclear.When examining the disproportionate burden of COVID-19 cases in Black and Hispanic adults, differences in access to health care and social and structural