# Why Guinea-Bissau halted a controversial hepatitis vaccine trial for babies

https://mins.news/en/item/130911

- Al Jazeera, 2026-11-05 15:01 UTC
- Health
- Original: https://www.aljazeera.com/news/2026/11/5/why-guinea-bissau-halted-a-controversial-hepatitis-vaccine-trial-for-babies?traffic_source=rss

> Guinea-Bissau reportedly halted a US-funded hepatitis B vaccine trial after it failed to secure required government approval. Experts had warned that withholding birth doses from one group could deny critical vaccines to thousands of infants; the WHO called the trial unethical.

## Related coverage

- [Why a US-funded vaccine trial on babies was cancelled in Guinea-Bissau](https://mins.news/en/item/130509) — BBC News, 2026-11-05