Pfizer's COVID-19 shot causes mostly mild side effects in young kids - U.S. CDC

Pfizer Inc and BioNTech SE's COVID-19 vaccine caused mostly mild side effects in children aged 5 to 11 years, according to data published by the U.S. Centers for Disease Control and Prevention on Thursday. The data showed that after the second dose of the vaccine some children reported injection-site pain and other systemic reactions such as fatigue and headache. The CDC said it also received reports of 11 cases of myocarditis, a type of heart inflammation, in children aged 5-11 years who had received the vaccine. Of them, seven had recovered, and four were recovering at the time of the report.