Dissemination of an Extended-Spectrum-β-Lactamase bla TEM-52 Gene-Carrying IncI1 Plasmid in Various Salmonella enterica Serovars Isolated from Poultry and Humans in Belgium and France between 2001 and 2005

ABSTRACT We report here the dissemination of a conjugative IncI1 plasmid carrying bla TEM-52 on a Tn 3 transposon conferring resistance to extended-spectrum cephalosporins in Salmonella enterica serovar Agona, Derby, Infantis, Paratyphi B dT + , and Typhimurium isolates from poultry and humans in Belgium and France from 2001 to 2005. The most prevalent serovar spreading this resistance was serovar Infantis.