8 week Golden Retreiver puppy has parvo
2 weeks ago I purchased a Golden Retreiver puppy that was 8 weeks old. We got him on a Tuesday around 5pm and on Wednesday he started throwing up and was very lifeless. He would not eat, drink or play. I took him to the vet Thursday morning and he was diagnoised with Parvo. I immediately called the breeder and told her that the puppy had parvo. This was one of 10 in the liter. She told me that she had 2 puppies left and they were not sick. I have no other dogs so I know that he did not get it at my home. Was he sick when I bought him? How long is the incubation period? I believe that my puppy is much better now, eating everytjhing in sight, playing and barking.
I asked the breeder to refund my purchase price and she said that she did not sell me a sick puppy. I appreciate any advice you can give