YIKES...take no risks. My puppy was diagnosed w/ Parvo. She's alive and well, we caught it very early! The vet told me it can live for months...Even though they bleached and disenfected everything, I would do the same for your house, dip the bottoms of the shoes you were wearing in bleach to kill off any bacteria you may have came in contact with. My vet said that since my dog was around my parents dogs, they need to get the parvo vaccine again, just to be safe, even though theyre older dogs and have already had shots etc. It's always good to be safe than sorry. Also, don't let your dog come in contact with any other dog's dirty business. That's how it spreads!!! Also, dont let your dogs play with your shoes! I hope this helps.