Effect of a live attenuated vaccine against Lawsonia intracellularis in weaned and finishing pig settings in Finland.

Background: The intracellular bacterium Lawsonia intracellularis is an important pathogen in modern swine production. The aim of this study was to investigate the effect of a live attenuated L. intracellularis vaccine (Enterisol Ileitis) on the health and production parameters of weaned and finishing pigs in a commercial Finnish 850-sow farm with diagnosed L.