Revilla Ruiz, María EugeniaEsperón Fajardo, FernandoMartín-Maldonado Jiménez, BárbaraSimoes, Joao2025-10-132025-10-132025Revilla Ruiz, M. E., Esperón, F., & Martín Maldonado, B. (2025). Zoonotic Diseases of Ruminants. En J. Simões (Ed.), Encyclopedia of Livestock Medicine for Large Animal and Poultry Production. Springer Nature Switzerland AG. https://doi.org/10.1007/978-3-031-52133-1_241-1978-3-031-61548-1https://hdl.handle.net/11268/16386Zoonoses, responsible for up to 70% of human infectious diseases, are caused by bacteria, viruses, fungi, parasites, and prions. Livestock, particularly ruminants, significantly influences their epidemiology. Livestock density, health, genetic variability, and habitat fragmentation from agricultural expansion increase spillover risks. Emergent diseases often originate from domestic animals, highlighting the need for surveillance to improve biosecurity. This entry examines two European zoonoses, Q fever and cryptosporidiosis, alongside a neglected disease, leptospirosis.engbook part10.1007/978-3-031-52133-1_241-1restricted accessCiencias médicasBiologíaEpidemiologíaGoal 2: Zero HungerGoal 3: Ensure healthy lives and promote well-being for all at all agesGoal 15: Sustainably manage forests, combat desertification, halt and reverse land degradation, halt biodiversity loss