Repeated Occurrence of Diverse Extended-Spectrum ß-Lactamases in Minor Serotypes of Food-Borne Salmonella entericasubsp. enterica

ABSTRACTScreening of Greek nontyphoid salmonellae from 2000 to 2002 yielded three extended-spectrum ß-lactamase (ESBL)-producing human isolates. Salmonella entericaserotype Brandenburg harbored a multiresistant SHV-5 gene-carrying plasmid. S. entericaserotype Blockley and S. entericaserotype Hadar harbored a TEM-52 gene-carrying plasmid. An S. entericaserotype Virchow strain producing plasmid-mediated CTX-M-32 was isolated twice from poultry end products. All ESBL plasmids were self-transferable and carried by clones currently common in Greece.