Coronavirus is disproportionately killing minority children in the U.S., especially those with other underlying health conditions, according to a Centers for Disease Control and Prevention report that shows how devastation from COVID-19 among Black and Hispanic adults has carried down to their offspring.

Children are much less likely than adults to contract coronavirus or fall seriously ill because of the infection, health records show, though vulnerability varies based on demographics.

Of the 190,000 deaths attributed to COVID-19 in the U.S., 121 of those who died by July 31 were under the age of 21, according to the CDC's Morbidity and Mortality Weekly Report. Three of every 4 were of Hispanic, Black, American Indian or Alaskan descent, the agency said. Hispanics accounted for 45% of deaths overall, while Black people accounted for 29%.

Deaths were more common among males, particularly at the older end of the spectrum, with young adults age 18 to 20 accounting for nearly half, the agency found. The next highest risk was in infants under the age of 1. Underlying medical conditions were also common among the young patients, with 75% having at least one other health concern.

Nearly 40 deaths occurred at home or in the emergency department, a sign that necessary care may have been delayed for some. While younger patients are more likely to fully recover, complications including respiratory distress and multisystem inflammatory syndrome, a severe illness marked by fever, organ damage, and inflammation do occur, the agency said.

The findings are significant as schools across the U.S. reopen in some fashion, with many attempting a hybrid approach that allows some of the in-person learning that's crucial to childhood development, according to the agency. Parents, caregivers and children need clear, consistent and culturally appropriate information on how to avoid infection, as well as proper monitoring and ongoing care for those who do contract the virus, the CDC said.

"Health departments, in collaboration with school districts and the communities they serve, can evaluate and improve health promotion, health access, and health equity for all infants, children, adolescents, and young adults," the agency said. "Ultimately, health departments, health providers, and community partners can mobilize to remove systemic barriers that contribute to health disparities."

Minority children are disproportionately represented in families of essential workers who are often unable to do their jobs from home, which puts them at higher risk for exposure to the coronavirus known as SARS-CoV-2, the CDC said. Parents and older members of the household who become infected could pass the virus to the children they live with, the agency said.

"Disparities in social determinants of health, such as crowded living conditions, food and housing insecurity, wealth and educational gaps, and racial discrimination, likely contribute to racial and ethnic disparities in COVID-19 and MIS-C incidence and outcomes," according to the report.

The CDC said that the higher rates of adverse outcomes for minorities are also likely related to challenges in seeking care, including because of lack of insurance coverage, child care, transportation and paid sick leave.