Local to me: a news story about a life-saving donation of a kidney.
From an unexpected source: the man was compatible with his own wife.
I first heard of this shortly before the operation, through friends and a list of weekly-prayers at church. While the blood type of the wife and husband are compatible, I highly doubt that the blood type is the reason that her kidney was compatible with his body.
Still, that is an amazing gift to give. And a very uplifting Christmas story.