**5. Summary and conclusions**

The recent increase in zoonotic disease incidence, rare infectious diseases, and antigenic variants from old diseases emerging in livestock and companion animals are the reasons for the continous growth of the autogenous vaccine industry in the last 7 years. In the last ten years, the poultry industry has increased the usage of autogenous vaccines, leading to changes in legislation and vaccination programs. Currently, these autogenous vaccines are used extensively in North America as part of control programs—mainly in breeders. The use of autogenous vaccines requires constant monitoring for challenge, clinical case interpretation, and support for the vaccine manufacturing industry to develop new licensed vaccines to meet industry needs.

*Poultry Farming – New Perspectives and Applications*
