(Merck) Protects against porcine parvovirus and 5 strains of Lepto plus erysipelas in healthy breeding age swine. Duration of immunity against erysipelas has been demonstrated to be at least 121 days. Administer 2 ml IM to sows and gilts. Give one dose 6 weeks before breeding, followed by a second dose in 14 to 28 days. Revaccinate with a single dose prior to each subsequent breeding.