Federal scientists estimated that more than 40 percent of children aged 5 to 11 had been infected with the coronavirus by June. Outside experts aren’t so sure.Federal scientists estimated that more than 40 percent of children aged 5 to 11 had been infected with the coronavirus by June. Outside experts aren’t so sure.your-feed-science, Coronavirus (2019-nCoV), Vaccination and Immunization, Disease Rates, Tests (Medical), Antibodies, Children and Childhood, Pfizer IncRead More