"So when he arrived at the fight, he joined in on the Death Eaters’ side?" asked Harry, who wanted every detail of Snape’s duplicity and infamy, feverishly collecting more reasons to hate him, to swear vengeance.
There are no more uses of "infamy" in the book.
Show samples from other sources
a date which will live in infamy
"Yes," said Collective 0-0009, "we have much to say to a wretch who have broken all the laws and who boast of their infamy!"