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ARCHIVEARCHIVED EVENT BRIEFLAST CHANGED Nov 1, 2026, 2:01 PM
PUBLIC HEALTH ALERTS • GUINEA-BISSAU

Guinea-Bissau blocks planned hepatitis B vaccine study

6 SOURCES GUINEA-BISSAURESOLVED
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HISTORICAL RECORD

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BLUF

The planned newborn hepatitis B vaccine study in Guinea-Bissau will not proceed after the government refused to authorize it, the lead researcher said. The announcement follows a police search of the research project’s offices and seizure of vaccine doses.

HOW THIS BRIEF WAS MADE 5 outlets: 1 national · 1 international · 2 specialist · 1 trade press. Automated sourcing and summaries by the BLUF engine. Corrections

Why it matters

The study was to receive funding from the U.S. Centers for Disease Control and Prevention, according to The Guardian. The reported cancellation means the planned research will not take place in Guinea-Bissau; no further U.S. consequences are described in the articles.