Guinea-Bissau halts controversial US-funded hepatitis B vaccine trial
Guinea-Bissau halted a US-funded hepatitis B vaccine trial after it failed to gain government approval.

In Brief
- •Guinea-Bissau halted a US-funded hepatitis B vaccine trial after it failed to gain government approval.
- •The trial aimed to assess the effects of WHO-recommended vaccines on two groups of babies, withholding the vaccine from one group.
- •The project, led by Danish researchers Christine Stabell Benn and Peter Aaby, faced global scrutiny over ethical concerns.
- •The trial was funded by the US Centers for Disease Control and Prevention (CDC) and involved 14,000 babies.
- •Authorities seized vaccine batches and are investigating whether the trial complied with safety standards.
Why It Matters
The halt of the hepatitis B vaccine trial in Guinea-Bissau raises significant ethical and public health concerns. The trial's design, which withheld a critical vaccine from one group of babies, has been widely criticized as unethical. This incident highlights the tension between scientific research and public health priorities, particularly in regions where vaccine access is already limited. The trial's suspension underscores the need for stricter regulatory oversight and ethical guidelines in clinical research, especially when involving vulnerable populations.
Key Details
- Funding Amount
- $1.6 million
- Number of Babies Involved
- 14,000
- Funding Source
- US Centers for Disease Control and Prevention (CDC)
- Research Group
- Bandim Health Project, University of Southern Denmark
- Key Researchers
- Christine Stabell Benn and Peter Aaby
- Government Review Outcome
- Paused and reviewed
Context & Background
Guinea-Bissau has one of the highest numbers of people living with hepatitis B, with one-fifth of the 2.2 million population affected. The country struggles with limited vaccine access, authorizing the vaccine at up to six weeks after birth.
Original Reporting & Sources
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