Parvo Puppy Coming Home - Disinfecting Environment?

When your puppy is fully recovered from Parvo, it should have immunity. But you wouldn't want to have other puppies over for a few months. Regarding your hardwood floors, you might just clean them as you would normally do because your puppy can't get re-infected. It sounds like you already have some good advice about what to feed your dog. My understanding is that offering some of the things you have written about in small amounts is good. If the puppy is ravenous, don't allow her to over eat. Yogurt is different from regular milk, but I would probably offer the other things you suggested first. Your Vet should give your recommendations regarding diet.