Your parvo dog is OK to bring back to your home. Your home is infested with parvo germs so there can be NO new other dogs introduced to that home for a year. Yes you should bleach everything you can.
Parvo dogs die easily. Germ is concentrated and spreading in their colon. A product that kills bacterial, viral and fungal concentrations needs given by enema. Half hour later, another enema. Health food store, colloidal silver 10 PPM or a little better is an excellent lifesaver in the enema bag. You stay up all night and besides the enema, you hydrate your dog even if you have to do it with and eyedropper. Few spoonfuls of CS as well. Electrolytes lots. Chicken soup. Gatoraid. Children's pedialyte.
Dogs most often die with dehydration. That's why you are up all night. On top of that if your dog was just vaccinated, that's where he/she got the parvo.