Don't want to rain on anyone's parade, but Xenopus are known carriers of chytrid. They are immune to it, but most likely your other frogs are not. Good news is chytrid is easily destroyed. Wash your hands and anything else that comes in contact with the clawed frog or its enclosure. Alcohol can be used on your hands and a bleach and water solution on equipment. Rinse thoroughly before coming contact with any amphibian after that. The temperature can also be raised to 37 C for about 16 hours according to an article I saw. If your other frogs do become infected they can be treated with itraconazole.

I had a fire salamander die of chytridiomycosis about 2 months ago, so I have been very aware of the disease and paranoid about its spread.

For more info see - http://www.amphibianark.org/chytrid.htm