Effects of attenuated vaccine protocols against Salmonella Typhimurium on Salmonella serology in subclinically infected pig herds, Peeters, Linda, Dewulf Jeroen, Boyen Filip, Brossé Charlotte, Vandersmissen Tamara, Rasschaert Geertrui, Heyndrickx Marc, Cargnel Mickael, Pasmans Frank, and Maes Dominiek , The Veterinary Journal, Jan-07-2019, Volume 249, (2019)