The booster is made by Pfizer and BioNTech and is one-third the companies' adult COVID-19 vaccine dose.

Everyone age 12 and olderwas already eligible for a third shot, or booster dose.

Previously, the CDC language was that those groups “may” get a shot if they choose.

Roughly 35% of children of the same age have gotten one dose.

I encourage parents to keep their children up to date with CDC’s COVID-19 vaccine recommendations."

Safety of thebooster shotwas evaluated in about 400 children.

The agency noted that it will make documents related to the request available on its website.

Children under age 5 still aren’t able to get vaccinated against COVID-19.