Guinea-Bissau halts US vaccine trial 

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​ Guinea-Bissau has suspended a controversial US-funded hepatitis B vaccine study, igniting a debate over ethics, power, and national sovereignty in global health research. The decision was taken by Guinea-Bissau’s recently appointed health minister, who cited inadequate ethical review. The trial, led by Danish researchers, planned to withhold hepatitis B vaccines from some newborns, a design […]