What is Parvo in Dogs? Canine parvovirus type 2 (also known as CPV, CPV2, or just “parvo”) has been sickening and killing dogs and puppies since 1976, the year it first emerged in dogs. The illness caused by the virus, characterized by severe vomiting, bloody diarrhea, and lethargy, first affected dogs in Europe. Within two … Continue reading Parvovirus in Dogs and Puppies: Symptoms, Survival Rates, and How To Protect Your Pet