Public health experts challenge vaccine hesitancy for children ages 12 to 15 Lake County mom says her son getting a vaccine is another step toward normalcy Updated: Tags: Almost a week ago, federal regulators cleared Pfizer’s COVID-19 vaccine for anyone 12 and up. The Director of Vaccine Education Center with the Children’s Hospital in Philadelphia Dr. Paul Offit said parents should trust the science and data. [TRENDING: Ad “While I understand that I think parents should be skeptical of everything that they put into their children’s bodies, at this point, you have enough information to say this vaccine is safe and effective,” Offit said.