LMO7 and salmonellosis: In the early years of the decade, outer membrane porin (Omp) L which has been investigated by Yang et al. showed 100% protection in mice against salmonellosis and the other Enterobacteriaceae members such as Klebsiella oxytoca, E. coli O157:H7, Shigella, and Citrobacter koseri formed as a single cluster in the phylogenetic tree of OmpL [10].