Advances in Ileitis Control, Diagnosis, Epidemiology and the Economic Impacts of Disease in Commercial Pig Herds

Proliferative enteropathy, commonly known as “ileitis” continues to be a significant production-limiting disease in pig herds throughout the world. The disease can be controlled with a combination of vaccination and antibiotic medication. However, pressure from consumers to reduce antibiotic use in livestock industries highlights the need to better understand the epidemiology of ileitis, the mechanisms of immunity, and to identify management factors that can reduce the load of Lawsonia intracellularis in both pigs and the environment. New diagnostic assays and economic modelling of ileitis will help producers target optimal treatment times and minimize the production losses associated with ileitis. This review aims to outline the current advances in disease diagnosis, epidemiology, control strategies and the economic impact of both clinical and sub-clinical disease.