The vomitus or diarrhea may be bloody. Since these signs can indicate many diseases, it is important to see your veterinarian if your puppy shows any of these. Young pups, less than three months of age, can become dehydrated quickly. These animals can die easily if not treated promptly. The animal's own immunity has to rid itself of the virus.
Supportive care is very important in the treatment of parvoviral infections.
Sick animals need to be given fluids if they are dehydrated. Secondary bacterial infections may also be a problem. If an infection develops, antibiotics need to be administered to fight it. Treatment may take a couple of days up to several weeks, depending on the dog, its age, and the severity of the infection. Parvovirus can persist in the environment for long periods.