The first doses of Pfizer's COVID-19 vaccine are being administered to kids 12 to 15 years old today following a recommendation from Centers for Disease Control and Prevention advisers.

Leaders of the Bergen County mega site say they’ve had a decent amount of kids come through with their parents, but they don’t have an exact number.

The CDC gave Pfizer's shot the green light Wednesday, saying it would be available for the age group under the same FDA emergency use authorization granted to adults.    

The action opens vaccinations to around 17 million adolescents in the U.S. In clinical trials of more than 2,000 children, the Pfizer vaccine revealed a 100% efficacy rate.

While it isn't mandated kids get vaccinated before the start of the school year in September, Gov. Phil Murphy says getting the shot will help things run smoother.

"Even though our youngest residents have among the lowest rates of hospitalizations and deaths, they have had among the greatest rates of transmission,” says Murphy. “We encourage all parents to talk now with their adolescent children about getting vaccinated."

Samia Ali-Akhgar, of Edgewater, stopped by with hopes of getting her children vaccinated.

“We arrived here hoping that we can get them vaccinated but unfortunately they did want proof of birth so we didn’t have their birth certificates or passports, but we were fairly close so we will be back tomorrow with that identification,” says Ali-Akhgar.

In order for those under 18 to get vaccinated at the site, you need a form of identification stating the child is 12 or older and in fact the person they are with is their guardian. The documents include birth certificates, school records or a passport.

Hackensack Meridian and the Army National Guard will also be in North Bergen on Saturday from 10 a.m. to 2 p.m. and Monday from 10 a.m. to 3 p.m. at the community center providing the Pfizer vaccine to the community.