The Guardian World · Oct 9, 2026

Controversial vaccine trial touted by RFK Jr gets go-ahead in Guinea-Bissau

Recommended dose of hepatitis B vaccine will be withheld from thousands of newborns by Danish researchers A controversial research trial that will withhold hepatitis B vaccines from some African newborns was given approval to move forward this week. A previous version said CIDRAP first reported news that the research trial was approved by the Denmark ethics committee.