An estimated 7 million children ages 5 to 11 have received at least one dose of the coronavirus vaccine in the United States since the Centers for Disease Control and Prevention signed off on the two-shot Pfizer-BioNTech series for the younger age group.

Some pediatricians have expressed concern that more children should be vaccinated by now; as of January, only a quarter of all those eligible had received at least one dose. Amid record case numbers fueled by the omicron variant, experts say vaccinating children to ward off severe illness and curb virus spread is key.

“The most important thing about vaccination is that we want to prevent serious illness and death in children, decrease infections and prevent further variants,” Jennifer Shu, a pediatrician and spokesperson for the American Academy of Pediatrics, said in November.

Some 5-to-11-year-olds received the nation's first children's coronavirus vaccine on Nov. 3, after the CDC authorized immunizing millions of kids. (Justin Scuiletti/The Washington Post)

Shu said parents and guardians should speak with their children’s pediatricians regarding any questions or concerns about the vaccine.

We have also tried to answer some common questions here.