Morgan Tsvangirai's unique power was that he made Zimbabweans excited about the idea of change.
Many women in African countries who are medically required to have caesarean sections aren't able to access them due to weak health systems and a lack of resources.
Vasectomies could be an effective male birth control method in Africa but the procedure is misunderstood and therefore poorly used.
Women who were found to have lied in a clinical trial testing anti-HIV drugs were heavily criticised. But there are several factors that drove them to lie.