The same intensive farming conditions that compromise farm animal welfare also create the conditions under which zoonotic diseases emerge and spread, linking animal and human health.
The welfare and pandemic risk connections in intensive animal agriculture are structurally related, not coincidental. Overcrowded animals with compromised immune systems are ideal incubators for viral evolution and transmission. The conditions that cause welfare failure — high density, stress, poor air quality, reduced immunity — are the same conditions that facilitate pathogen amplification. Improving farm animal welfare through lower stocking densities, better air quality, and reduced stress does not just benefit animals — it reduces the evolutionary pressure on pathogens to adapt to crowded hosts. One Health policy frameworks that integrate animal welfare into pandemic prevention strategy represent a sophisticated and evidence-based approach to global health security.