Nearly 226,000 Covid-19 cases were reported in children last week, pediatrician group says CNNScientists examine kids’ unique immune systems as more fall victim to COVID The Seattle TimesScientists examine kids' unique immune systems as more fall victim to Covid CNNWhat we know about COVID-19 in kids and the risks of returning to school ABC NewsScientists examine the unique immune systems of children as more fall victim to COVID-19 USA TODAYView Full Coverage on Google News