In this issue of Veterinary Clinics of North America: Food Animal Practice, guest editors Drs. Kelly Still-Brooks and Julia Herman bring their considerable expertise to the topic of Biosecurity of Ruminants. Top experts cover emerging issues in global practice as well as human/animal interface and niche operations. Articles include abortion diseases, respiratory health, salmonella; and much more. Contains 12 relevant, practice-oriented topics including concepts in understanding infectious disease dynamics in populations; calf health; lentiviruses and contagious lymphadenitis; livestock: consumer interface (organic, raw milk/herdshares, agrotourism); livestock: public interface (exhibition livestock/petting zoo/agrotourism); and more. Provides in-depth clinical reviews on biosecurity of ruminants, offering actionable insights for clinical practice. Presents the latest information on this timely, focused topic under the leadership of experienced editors in the field. Authors synthesize and distill the latest research and practice guidelines to create clinically significant, topic-based reviews.