bringing a new puppy into our home

2 weeks ago, my son purchased a puppy. Unfortunately, when we took him to the vet the same day we were told he had Parvo. We returned him to the owner the same day. As far as our car and home, we feel that we either threw away, bleached, or washed everything that came close to the puppy in hot/soapy bleach water. We also shampooed all of our rugs. We still want to adopt a puppy but we want to be certain that it is safe and the new puppy won't become sick. Please let me know if and when we can bring another puppy into our home.

Parvo is spread through feces so anywhere the first puppy took a crap is a hot spot.
   
If he crapped on a pee pad and you threw it away you should be in good shape after all the cleaning you did.
   
If he crapped on paper, it may have seeped through so any spot he pooped in needs to be washed with chlorine bleach, which is the most effective cleaner.
   
Honestly no disinfectant works 100% on Parvo. The Parvo virus remains active for a good 5 months.
   
If the first puppy took a dump outside, the ground is infected even if you scooped.
   
Additionally, if anyone walked in the spot where the dog pooped, Parvo attached itself to their shoe bottoms and was tracked whereever they went.
   
This is how pups who never left their own yard contract Parvo; it's coming off the bottoms of shoes and being tracked into their homes because someone unknowingly stepped in a spot where infected poop had once been but had been cleaned up.
   
So if the dog just crapped on a pad (or didn't crap anywhere on your property, you returned him the day you got him so it's possible), you're fine.
   
If he crapped on paper indoors or anywhere in your yard, then I would wait 6 months before getting another puppy (I believe 5 is recommended but I would rather be more cautious than less, it's your choice).
   
Good luck.