What are the chances of a 7 week old puppy recovering from roundworms and parvo virus?

I just got my 7 week old beagle last week and unfortunately the breeder did not give him any shots. When I took him to the vet yesterday they couldn’t give him anything since he was positive for parvo virus and roundworms. My vet said it’s up to me to continue treatment. Realistically what are his chances of surviving?

The chances are very low, but there is a chance.

7 weeks old is too young for a pup to leave it’s mom, and you should have asked for records of shots.

While I’m very sorry for what puppy is going through, why didn’t you do more research before buying a dog from such a bad breeder?

Many states are enacting Puppy Lemon Laws for cases like this. http://www.malteseonly.com/lemon.html to see if your state is one of them. If not, then contact the police about this person selling sickly dogs that are underage.