The Luck of the Vails by E.F. Benson

Lady Oxted, in spite of her husband's general reflections upon her character, could not reasonably be called an ungenerous woman; and when, ten days after these last occurrences, it was her painful duty to visit the convalescent sofa of Geoffrey Langham, she said without circumlocution, or any attempt to shirk due responsibility, that she supposed it was she from whom he had caught the influenza. Geoffrey, on his side, did not regard this as anything but a certain conclusion, but added, with the irritable resignation which accompanies convalescence, that he did not suppose she had done it on purpose. The effect of this was to make Lady Oxted wonder whether she had really given it him at all.

"You speak as if it was quite certain," she said. "But when one comes to think of it, Harry came to see me the same day, in great depression, which predisposes you to catch it, and he hasn't, so to speak, blown his nose since."