Evidence-based information about cat feline panleukopenia: vaccination and outbreak prevention for animal welfare improvement.
Unvaccinated cats that contract panleukopenia experience severe vomiting, diarrhoea, and immunosuppression. Mortality is high without intensive supportive care. Rescue centres and multi-cat environments are high-risk settings where outbreaks can cause significant suffering and high mortality. Vaccination is the most effective and cost-efficient welfare intervention available.