Labman, you answered the question she was asking, which I didn't.
The fact that the vet suspected hydrocephalus occurring less than 24 hours after she purchased the pup, and told her to watch the dog, tells me that this puppy was seriously ill to begin with. Who knows if the dog really had parvo virus. That is what the breeder stated and we already know that she was trying to pawn off a very sick dog on an unsuspecting buyer. The time span suggests that there is no way this dog contracted anything in any place other than the breeders home. I suspect that the illness was very much due to improper breeding practices and this poor puppy would have died at the breeder's home if scriggs wasn't hoodwinked into purchasing it in the first place. It is a very sad way to learn a hard lesson. Never buy a puppy that is obviously ill.