The present invention relates to the use of porcine circovirus type 2 (PCV2) antigen and Lawsonia intracellularis (L.intracellularis) antigen for the prevention, reduction in severity of, lessening of the clinical symptoms associated therewith, reduced incidence in a herd, and treatment of swine against Porcine Circovirus Associated Diseases (PCVAD) and L.intracellularis associated diseases. In particular, the present invention provides a method for the treatment or prophylaxis of an animal against PCV2 infection and ileitis caused by L. intracellularis, or a method for reduction of clinical symptoms caused by or associated with a PCV2 and L. intracellularis infection, comprising the step of administering an effective amount of PCV2 antigen and L. intracellularis antigen to an animal in need of such treatment.
