I had a dog with Parvo years ago. A dalmation we recued from the pound. We didn't have 3 days when he bacame ill. Believe me when I say that if they have Parvo you know it. They are very sick with vomiting, bloody diarrhea, extremely weak. They can go down hill ver, very fast but you know it for sure. I would be very careful with any new puppies as your neigbors dog died of it because it can live in an area for something like a year to 2 years...I don't remember the time now but it is long. Your new puppy would be in a lot of danger.
Kim