'On the morning of April 16, Dr Rieux emerged from his consulting-room and came across a dead rat in the middle of the landing.' It starts with the rats. Vomiting blood, they die in their hundreds, then in their thousands. When the rats are all gone, the citizens begin to fall sick. Like the rats, t...

'On the morning of April 16, Dr Rieux emerged from his consulting-room and came across a dead rat in the middle of the landing.' It starts with the rats. Vomiting blood, they die in their hundreds, then in their thousands. When the rats are all gone, the citizens begin to fall sick. Like the rats, they too die in ever greater numbers.