%0 Journal Article %T Salmonella Typhimurium induces SPI-1 and SPI-2 regulated and strain dependent downregulation of MHC II expression on porcine alveolar macrophages %A Alexander Van Parys %A Filip Boyen %A Elin Verbrugghe %A Bregje Leyman %A Bram Flahou %A Freddy Haesebrouck %A Frank Pasmans %J Veterinary Research %D 2012 %I BioMed Central %R 10.1186/1297-9716-43-52 %U http://www.veterinaryresearch.org/content/43/1/52/abstract