Disease outbreaks in wildlife populations cause significant welfare harm. Early surveillance and proportionate response protect both individual animals and population viability.
Wildlife disease events represent welfare crises for the individual animals affected. Avian influenza kills seabirds through respiratory failure, neurological damage, and drowning — prolonged and distressing deaths visible on beaches. The welfare response to disease outbreaks involves: rapid detection through surveillance, assessment of whether intervention is feasible and appropriate, provision of euthanasia for severely affected individuals, and minimisation of additional stressors (disturbance, predation) on affected populations. The tension between intervention (which may spread disease through handling) and non-intervention (which allows suffering to continue) is a genuine welfare dilemma requiring expert judgment.