The funding comes at a critical time, with health officials warning that the outbreak caused by the rare Bundibugyo strain of Ebola could become one of the most severe in history.
This new allocation builds on earlier support, which includes US$350 million in Ebola response and broader humanitarian assistance across the DRC, South Sudan, and Uganda.
Under the new guidance, only infants whose mothers test positive for hepatitis B or whose status is unknown will automatically receive the vaccine at birth.