Intervet Schering-Plough Animal Health offers the Porcilis AR-T DF vaccine against progressive atrophic rhinitis in piglets. The vaccine is inactivated with a new adjuvant associated with fewer injection site reactions, according to the company. It uses Diluvac Forte, an aqueous vitamin E-based adjuvant, and will replace Porcilis AR-T, a similar vaccine containing an oil-based adjuvant.