COVID-19 shots for U.S. infants, toddlers and preschoolers moved a step closer Wednesday.

The Food and Drug Administration’s outside vaccine advisers gave a thumbs-up to Moderna’s two shots for the littlest kids. The panel is set to vote later Wednesday on whether to also recommend Pfizer’s three-shot series for those youngsters.

The outside experts voted unanimously that the benefits of Moderna’s shots outweigh any risks for children under 5 — that’s roughly 18 million youngsters.

They are the last remaining group in the U.S. to get vaccinated and many parents have been anxious to protect their little children. If all the regulatory steps are cleared, shots should be available next week.

“This is a long-awaited vaccine,” said one panel member, Dr. Jay Portnoy of Children’s Hospital in Kansas City, Missouri. “There are so many parents who are absolutely desperate to get this vaccine and I think we owe it to them to give them a choice to have the vaccine if they want to.”

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