Feline panleukopenia is a devastating viral disease of cats that is entirely preventable through vaccination, making immunization the most important welfare protection for this condition.
Panleukopenia causes acute severe welfare harm through profuse vomiting and hemorrhagic diarrhea, profound immunosuppression, and rapid death in unvaccinated cats. The suffering involved in panleukopenia death is extreme and entirely preventable. Vaccination has made panleukopenia relatively rare in well-vaccinated companion cat populations, but outbreak risk persists in unvaccinated and shelter populations. Supporting low-cost vaccination programs for cats in underserved communities directly prevents substantial welfare harm at population scale just as in the dog parvovirus context.