An epidemic of ghosts

Mozambique is being ravaged by an epidemic of spirit possession. These 'outbreaks' have traditionally been dismissed as superstition by commentators from afar, but it is becoming increasingly recognised that different cultures have different ways of expressing mental distress and social anguish – to the point where a team of medical scientists have just published the first large scale epidemiological study on spirit possession and its link to mental and physical illness in post-civil war...