U.S. regulators want Pfizer to have vaccine available for children as young as six months

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ROCHESTER, N.Y. (WHEC) — A person familiar with knowledge of this plan tells NBC News how federal regulators are urging Pfizer to keep pushing forward on a vaccine for children ages six months to five years old.

The regulators want Pfizer to submit the vaccine for that age group for emergency authorization, while awaiting data on a three-dose course, after originally date showed that two doses weren’t strong enough.

The goal is to have the shots ready as soon as late February.

The expectation is for Pfizer’s application to be submitted as soon as Tuesday, February 1.

The FDA is expected to sign off on a three-dose plan soon, but regulators say two doses are enough for now.