earticle

영어

Feces of wild animals are the harbor and potential vectors of Salmonella and Shiga toxinproducing Escherichia coli (STEC) that cause many infectious diseases of human and animals. This study includes the molecular phylogeny and median joining network (MJN) of Salmonella and STEC. Based on median joining network and haplotype analyses, 10 Salmonella haplotypes were clearly discovered in Korean wild animal fecal samples. Of them, the haplotype H8 and H1 belong to S. enterica diarizonae and the other 8 haplotypes belonged to S. e. enterica. The haplotype H7, H6 and H9 (green color) of birds, H4 and H5 (red color) of leopard cats and H13 of Korean National Culture Collection (NCCP) might be disseminated from same origin. The phylogentic tree shows that a total 54 Salmonella strains from worldwide and Korea were grouped into main two species of S. enterica and S. bongori. Salmonella enterica formed separated clades of four subspecies of S. e. enterica, S. e. salamae, S. e. arizonae and S. e. diarizonae. In case of STEC, 6 types of serovas were discovered from the 93 samples. Strains of the serovar E. coli 083:H1 were well clustered genetically together and widely distributed over various localities and various host species. This kind of analysis might be better understanding of genetic relatedness of Korean Salmonella to others. In addition to gene network analysis more important part of this section because of genealogical analysis might be understanding transmission mode of pathogen