Charles Dickens,
Little Dorrit — Book 2, Chapter 13
(1857)
“ Of whom Mr Pancks had taken the prevalent disease, he could no more have told than if he had unconsciously taken a fever. Bred at first, as many physical diseases are, in the wickedness of men, and then disseminated in their ignorance, these epidemics, after a period, get communicated to many sufferers who are neither ignorant nor wicked. Mr Pancks might, or might not, have caught the illness himself from a subject of this class; but in this category he appeared before Clennam, and the infection he threw off was all the more virulent. ”
