FILE PHOTO: Biostatistician and epidemiologist Martin Kulldorff, MD, PhD, speaks at the meeting of the members of the Advisory Committee on Immunization Practices as the U.S. Centers for Disease Control and Prevention's (CDC) advisory panel for vaccines convenes, in Atlanta, Georgia, U.S. June 25, 2025. REUTERS/Megan Varner/ File Photo

(Reuters) -U.S. vaccine advisers have created two new working groups to study vaccines in pregnancy and childhood vaccine schedule, committee chair Martin Kulldorff said on Thursday.

CDC's working groups are small, topic-focused teams made up of Advisory Committee on Immunization Practices members, agency staff, and outside experts.

(Reporting by Mariam Sunny in Bengaluru; Editing by Maju Samuel)