Aid may often be criticised, but it works, says the Gates Foundation.
Family planning is not a luxury to everyone. Melinda Gates talks about why she has dedicated so much of her time to helping women plan their families.
Comment: 100-million young lives saved by aid
Melinda Gates on what's best for children
As the death toll rises, we look at the people, the policies and the politicians at the centre of this national tragedy.
South Africa has disability grants but a doctor deemed his tuberculosis patient was not poor enough.
Despite many desperately needing psychiatric treatment, not much is available for those living in the war-torn country.
Bhekisisa means "to scrutinise" in Zulu
In South Africa, Zulu patients who would like to be thoroughly assessed by a doctor, would ask the physician to "bhekisisa" them.