The Connecticut lawmaker also spoke out against the administration's broader approach to public health directives.
"Gavi has helped to vaccinate over 1 billion children globally over the past 25 years, preventing more than 20 million deaths.
The insertion of Secretary Kennedy’s senseless, selfish, and absurd crusade against vaccines is putting children in the United States and abroad at great risk.
He must stop putting his own personal, ill-informed opinions above well-established scientific evidence before even more children get sick," said DeLauro.
Secretary of State Marco Rubio indicated in June that re-engaging with Gavi aligns with core foreign health objectives.
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The United States traditionally supplies about 13 percent of Gavi's budget, amounting to roughly $300 million annually, and expects to reclaim its seat on the alliance's governing board as operations resume.