Zoetis ER Bac Plus is an Erysipelothrix rhusiopathiae bacterin formulated for swine. This ready-to-use suspension is administered intramuscularly to support herd health protocols in pig and swine operations. Each 100 mL vial provides 2 mL doses, making it practical for large barns and livestock health products programs. Supplied as a 1 x 10-vial pack to suit commercial and farm needs.