Rabbit haemorrhagic disease (RHD) exists in two strains in the UK and causes rapid, often sudden death in unvaccinated domestic and wild rabbits, with RHDV2 now widespread.
RHD2 causes rapid internal bleeding and death, often with significant suffering in the hours before death. The welfare case for vaccination is overwhelming. Even indoor rabbits face risk of indirect transmission. Annual or 6-monthly vaccination depending on vaccine type is the essential prevention measure.