Okay, Time to settle down. Parvo isn't some set of weird symptoms that makes your dog a monster then it dies and, it isn't an automatic, no cure, death sentence. What it is is sever vomiting an diarrhea that cause severe dehydration. If not treated as soon as symptoms start, it can lead to death but, if it's caught and treated early, it's a severe, think intensive care unit of the hospital worthy, case of the flu if you want it in human terms, like if a 90 year old, 98 pound woman got swine flu - bad news but it can be treated and survived with proper, early care.
Yes, be careful of it, but don't freak out over it, don't make the puppy and yourself miserable over parvo. Bleach is going a bit far, yes, I keep young pups to my property and, only my dogs are ever here so, it's safe enough. None of mine have ever had parvo, if they are carriers, it's never affected a pup here so, I assume none are carriers. I don't take them out other than to PetSmart and Tractor Supply, before they are 14 weeks old, 2 weeks after the second vaccine, then we go to places other dogs are walked but not dog parks or places pets run free until 18 weeks of age.