Giving some newborns in Guinea-Bissau an established hepatitis B treatment but not others is "unethical", it says.

African scientists have criticised a study of hepatitis B virus birth dose vaccination as being unethical. Gilbert Nakweya reports.

Guinea-Bissau is one of the world's poorest countries, with half its population considered poor, according to the World Bank. It has emerged as a hub for drug trafficking between Latin America and ...

Guinea-Bissau is home to around 5% of critically endangered western chimpanzees, who face numerous threats including habitat loss, disease and illegal trade. A recent study found numerous chimps held ...