How long do dogs normally live?

Dogs become infected through contact with CPV in feces. Most dogs (more than 80 percent) that are infected will show no symptoms. Dogs that develop the disease show symptoms of the illness within 7 to 10 days. The symptoms are lethargy, vomiting, and diarrhea (usually bloody). After a dog is infected, there is no cure, but dogs usually recover from the viral infection and associated symptoms within five days. However, diarrhea and vomiting result in dehydration and secondary infections can set in, causing death even in treated dogs. Risk factors for severe disease include young age, a stressful environment, and concurrent infections with bacteria, parasites, and canine coronavirus.