The agency is paying University of Southern Denmark researchers to conduct a single-blind clinical trial of the hepatitis B vaccine in newborns in Guinea-Bissau.
The CDC also said if a baby is not receiving a birth dose of vaccine, the initial dose should be administered no earlier than 2 months of age.
Throughout the 2-day meeting, speakers and ACIP members singled out immigrants and people from Asia as potential sources of hepatitis B infection.
The infants most likely to fall through screening gaps are those born to families without consistent prenatal care, who are uninsured or underinsured, or live in at-risk communities.
Physicians say a federal advisory panel's proposed restrictions on hepatitis B vaccine are part of a broad assault on vaccine access.
Hospitals and health departments across the country say they're not planning to change their vaccination policy.
CDC vaccine advisers turned their focus to the childhood vaccine schedule, though no votes were cast.
When asked about what age they would recommend the vaccine, 35% chose birth and 16% said 1 month, for a total of 51% by 1 month.
The measures, which passed despite vehement protests from several members, drew swift rebuke from the medical community.
Although the hepatitis B vaccine is widely heralded as a public health success story, Kennedy has long targeted the vaccine as unnecessary and dangerous.
