Canine parvovirus causes severe haemorrhagic gastroenteritis with high mortality in unvaccinated dogs. Vaccination is the most important preventive welfare measure available.
Parvovirus causes one of the most severe welfare emergencies in companion animals. Affected dogs experience profound weakness, haemorrhagic diarrhoea, vomiting, and shock. Treatment requiring intensive hospitalisation with intravenous fluids and antibiotics is expensive and not always accessible. The condition is entirely preventable through vaccination. Outbreaks in unvaccinated populations, particularly in rescue settings, cause mass suffering and death. Ensuring universal vaccination coverage is one of the highest-impact welfare interventions in companion animal medicine.