sorry to hear about your puppy and good luck on his recovery. I don't see Shar Pei either ... but maybe pit/neopolitan mastiff (if the pup is as old as suggested). I've had one with Parvo too several years ago, luckily my vet used her as a study case and rehabbed her at his clinic in the lockdown ward so it did not cost me an arm and a leg, and I didn't have to have her at my home for 3 months. Even then she had to be in complete isolation in an enclosed room, I had to bleach down coming out and limit my contact with her for another 3 months. It was SUCH a pain! Are you aware that the puppy will now be shedding that virus randomly for months and months, and that ANYONE who comes in contact with you, your property, your other dogs, etc will track that virus all over the place? Say you step in the puppys dog poo, track even just trace amounts to your front yard, the mailman comes by, steps in your footprint, then tracks it to your neighbor etc. Even a single hair follicle can hold the virus. Unless something has changed drastically in the past few years on the parvo front, I am frankly shocked that a vet would send a contagious dog home like that to contaminate countless others. I am TRULY not trying to be a witch, but I am just very very surprised.