Usaully if not detected the pup will die within 24-48 hours. As far as hold long the pup will be sick. The pup will be sick for the rest of his life. It distroys the immune system. That does not mean that it will be spewing from both ends. Just can get sick easily. taylor
Minime that's totally not true. Parvovirus is not immunodeficiency disease like FIV or HIV, it's a virus that affects fast growing cells, especially those in the intestinal wall. Dogs that have had parvovirus do not suffer from the effects the rest of their lives, and there's no evidence they're more succeptible to diseases and getting sick than any other dog after they've fully recovered from it. As I've said before, I've had 2 dogs with parvovirus and both survived with no ill effects or recurring illnesses. Please don't give that kind of information without knowing the facts.