Canine parvovirus remains a major cause of preventable mortality in puppies and unvaccinated dogs, with welfare implications across shelter and community settings.
Parvovirus causes severe hemorrhagic gastroenteritis with intense suffering — bloody diarrhea, vomiting, dehydration, and systemic collapse. Welfare during treatment requires aggressive fluid therapy, anti-nausea medications, pain management, nutritional support, and isolation to prevent spread. In shelters, outbreak management requires rapid case identification, strict hygiene protocols, and population vaccination programs. Community-level prevention through low-cost vaccination clinics prevents the vast majority of cases.