in december the us food and drug administration authorized the emergency use of modernas covid19 vaccine for adults and of pfizerbiontechs covid19 vaccine for people ages 16 and older according to sputnik few children under age 18 have died of covid19 less than 300 but the group accounted for more than 10 percent of positive tests for coronavirus infection according to data from the centers for disease control cdc and the american academy of pediatrics studies attempting to gauge how readily children spread the virus to adults have yielded conflicting results in addition some infected children develop a related disease known as multisystem inflammatory syndrome which typically requires hospitalization although most victims recover researchers say