A controversial research trial involving the withholding of hepatitis B vaccines from newborns has been approved in Guinea-Bissau. Danish researchers will conduct the trial, impacting thousands of infants. The study aligns with the vaccine views of Robert F Kennedy Jr., a prominent vaccine opponent and secretary of the US Department of Health and Human Services (HHS). Details surrounding the trial’s methodology and ethical considerations remain a subject of debate. The trial’s approval raises concerns among public health officials regarding potential risks to infant health in Guinea-Bissau. This decision marks a significant moment in the ongoing discussion about vaccine policies and research in African nations. Further updates on the trial’s progress and outcomes will be closely monitored.