Risk factors

In the U.S., more Black and Latino children have been diagnosed with MIS-C compared with children of other races and ethnic groups. Studies are needed to help determine why MIS-C affects these children more often than others. Factors may include, for example, differences in access to health information and services as well as the possibility of risks related to genetics.

Most children with MIS-C are between the ages of 3 and 12 years old, with an average age of 8 years old. Some cases have also occurred in older children and in babies.