Many approaches to zoonotic disease prevention harm animal welfare. Understanding this tension enables policies that protect both human health and animal wellbeing.
Zoonotic disease prevention and animal welfare are often framed as conflicting priorities - protecting humans sometimes requires mass killing of animals. However, the relationship is more complex: some animal welfare improvements (reducing crowding, improving sanitation, reducing stress-induced immune suppression) may also reduce zoonotic spillover risk, making welfare and public health goals aligned. Mass culling during disease outbreaks causes massive welfare harm and may not be the most effective control strategy in all contexts - vaccination alternatives exist that protect public health with far less animal welfare harm. The welfare-informed policy position advocates for approaches that protect human health while minimizing animal suffering rather than treating animal welfare as irrelevant in public health contexts.