CDC Survey: More Than Half of Babies, Toddlers Had ‘Systemic Reaction’ After COVID-19 Vaccine

Parents reported 6 percent of young children were unable to do normal activities after second dose

A vial of Pfizer's COVID-19 vaccine in Seattle on June 21, 2022. David Ryder/Getty Images

More than 55 percent of children ranging in age between 6 months and 2 years had a “systemic reaction” after their first dose of the Pfizer-BioNTech or Moderna COVID-19 vaccines, according to data released by the Centers for Disease Control and Prevention (CDC) on Sept. 1.

In addition, almost 60 percent had a reaction to the second dose of the Moderna vaccine, in the CDC survey of more than 13,000 children.