I would attempt to save it unless as Mike said it has issues when moisture has gotten beneath.
I'd clean up the bulk and rinse with a Turbo tool. Then spray down a biocide and allow to sit for 10-15 minutes for full effectiveness. Rinse again with the turbo and dry. ATP luminometer can be used to prove some level of comfort in that you returned their home to a clean safe environment.
Swab the vinyl and insert in the tube. Compare counts with unaffected area. Any area that tests high, reclean and retest.
