Antibiotic susceptible strain. Salmonella enterica subsp. enterica serovar Newport str. SL317

Salmonella enterica subsp. enterica serovar Newport. Salmonella enterica subsp. enterica serovar Newport is common worldwide. Outbreak investigations and targeted studies have identified dairy cattle as the main reservoir this serotype. Antimicrobial resistance (Newport MDR-AmpC) is particularly problematic in this serotype, and the prevalence of Newport MDR-AmpC isolates from humans in the United States has increased from 0% during 1996-1997 to 26% in 2001. MDR strains have been recorded as resistant to ampicillin, chloramphenicol, streptomycin, sulphonamides and tetracycline (ACSSuT) and many of these strains show intermediate or full resistance to third-generation cephalosporins, kanamycin, potentiated sulphonamides, and gentamicin. Salmonella enterica subsp. enterica serovar Newport str SL317. The SL317 strain is an antibiotic susceptible strain from one of two distinct lineages of the Newport serovar.