Enterobactericeae Escherichia Salmonella, Shigella Klebsiella, Enterobacter, Hafnia, Serratia (VP +) Yersinia (pestis, enterocolitica,…) Edwardsiella tarda Citrobacter Proteus, Provedincea, Morganella (fenil alanin +) Plesiomonas shigelloides (oksidaz +)