Both work for protecting humans. However, I believe vaccination is better overall. It also improves the quality of life of the chickens. Unfortunately, it’s also (very slightly) more expensive, so America went the cheap route. The EU mandated to reduce animal cruelty, by vaccination.
Both work for protecting humans. However, I believe vaccination is better overall. It also improves the quality of life of the chickens. Unfortunately, it’s also (very slightly) more expensive, so America went the cheap route. The EU mandated to reduce animal cruelty, by vaccination.