Wild deer populations face significant disease burdens from conditions including chronic wasting disease, bovine tuberculosis and foot and mouth disease with serious welfare implications.
Wild deer disease represents a significant welfare concern at population scale. CWD in particular causes a prolonged and distressing illness with no effective treatment or prevention currently available. Affected deer experience progressive neurological impairment before death. Population management strategies that reduce density in affected areas can slow disease spread but involve their own welfare costs. The absence of effective CWD vaccine development despite years of research represents a missed opportunity to reduce large-scale wild animal suffering.