Hoelzer, K., Bielke, L., Blake, D. P., Cox, E., Cutting, S. M., Devriendt, B., Erlacher-Vindel, E., Goossens, E., Karaca, K., Lemiere, S., Metzner, M., Raicek, M., Collell Suriñach, M., Wong, N. M., Gay, C., & Van Immerseel, F. (2018). Vaccines as alternatives to antibiotics for food producing animals. Part 2: new approaches and potential solutions. BMC Veterinary Research, 49(70), https://doi.org/10.1186/s13567-018-0561-7