"Illness, indeed leprosy, continues to provide the great metaphor for sin. In A Burnt Out Case, Graham Greene, at a time when he seemed unsure as to what or even whether he himself believed, found that the stark fact of the hideous contortions of leprosy made illness at least indubitable. The cure that haunts the novel suggests something far more than being restored to the condition of most of us. It was possible to think of lepers as victims, selected without rhyme or reason for their tragic fate, but it is not some evil that merely happens to us, that befalls us, that haunts Graham Greene."
-- from "We Lepers" by Ralph McInerny