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.
The findings draw on data from more than 98,000 pediatric cases.
The analysis also found no tie between aluminum adjuvants and autism spectrum disorders.
Pertussis vaccination coverage dropped during the COVID-19 pandemic, with 87% first-dose coverage in the Americas region.
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.
The comments centered on a memo from FDA Center for Biologics Evaluation and Research Director Vinay Prasad.
