The 16 people studied by the CDC ranged in age from 21 to 50; nine were women. Five were reported as Hispanic, nine as African American, one as Asian and one as a United Kingdom–born man of African ethnicity. Nine patients had no reported underlying medical conditions; six were obese; one had poorly controlled diabetes mellitus type 2; two had hypertension; and one had obstructive sleep apnea. Eight patients had documented respiratory illness before developing symptoms of MIS-A.
Ten patients required intensive care, and two patients died, the CDC reported.
Another similarity to MIS-C and COVID-19, the CDC found, was that MIS-A disproportionately affects minorities.
“All but one of the patients with MIS-A described in this report belonged to racial or ethnic minority groups. Long-standing health and social inequities have resulted in increased risk for infection and severe outcomes from COVID-19 in communities of color,” the CDC report states. “MIS-C has also been reported disproportionately in these communities. Because patients described in this review represent a convenience sample from a small number of jurisdictions, conclusions cannot be made regarding the true burden or determinants of MIS-A in different groups; further research is needed.”
The CDC’s conclusion is not only the need for more research, but also that “the recognition of MIS-A reinforces the need for prevention efforts to limit spread of SARS-CoV-2.”