READ MORE: 15 children in NYC have possibly COVID-related illness

According to N.Y. Daily News, the cases are being reported out of New York City and grew from just 15 a few weeks ago to more than one hundred this week.

The New York City Health Department, which issued another bulletin about the illness this week, reports 110 cases of the illness – a significant increase since just earlier in the week.

Out of those 110 cases, known officially as a pediatric multi-system inflammatory syndrome, Black children made up 24%, 14% were Hispanic, 10% Asian and 9% were white, New York City Mayor Bill de Blasio told the press in a media briefing on Friday.

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Though the exact link to COVID-19 in unclear, half of the New York kids presenting with the syndrome tested positive for the coronavirus or the antibodies to it.

The cases in New York City so far are mostly in the Brooklyn, Bronx, and Queens, according to multiple sources.