In 2019, the residents of Sudan’s capital have witnessed a revolution, a counter-revolution, celebrations, brutal massacres and the fall of a dictator

<img src="http://www.mg.co.za/ContentImages/291293/aidsday06.gif" align=left>Governments should recognise that behaviour is influenced by its social context. In a disordered…

In the fight against Aids, prevention still matters, but prevention programmes in Africa have so far largely failed. "Safe sex" messages promoting abstinence or condom use have…