Controversial US study on hepatitis B vaccines in Africa is cancelled
US-funded hepatitis B vaccine trial for newborns in Guinea-Bissau was halted and cancelled over ethical concerns about withholding proven vaccines; redesign required before any restart.
South Bay Lawmaker Slams Trump Admin's $1.6 Million Hepatitis B Study in West Africa | KQED
A U.S.-funded Hepatitis B vaccine trial in Guinea-Bissau drew sharp criticism over ethics, potential harm from rolling back neonatal doses, and a nonstandard funding process.