A comment for Jill on this answer - the person making the inquiry should consider that cats claws are also filthy. They use them, after all, for digging and filling in the holes that they er…do their business in…
Cyclopatra
Welcome to the Straight Dope Message Boards, Cyclopatra, good to have you here.
When commenting on a Staff Report, it’s helpful to others if you can provide the link to the report. In this case: Straight Dope Staff Report: Do cats have poison claws?
… helps keep everyone on the same page.
There’s also a prior discussion in this forum called Cat claws and ringworm" that you might find interesting.
[Edited by CK Dexter Haven to fix link…]