The US Centers for Disease Control and Prevention (CDC) said on Wednesday it expanded the eligibility of Pfizer Inc and BioNTech SE’s booster doses to those 12 to 15 years old.

The move came after a panel of outside experts advising the CDC voted earlier to recommend booster shots of the COVID-19 vaccine be made available for ages 12 to 15.

The CDC’s Advisory Committee on Immunization Practices (ACIP) voted 13 to 1 to recommend that the US health agency support booster shots for those aged 12 to 15 at least five months after their second dose.

The panel also said the CDC should strengthen its recommendation for boosters for ages 16 and 17. The agency had previously made the shots available to those teenagers but had stopped short of suggesting that all of them should receive the additional jab.

The CDC said in a statement it now recommended that adolescents aged 12 to 17 years old should receive a booster shot 5 months after their initial Pfizer/BioNTech vaccination series.

Covid-19 cases in the United States have hit record levels in recent days due to the fast-spreading Omicron variant of the virus. Infection rates are surging as many workers and school children return from holiday vacations, raising the prospect of overwhelmed health systems as well as closed businesses and schools.

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