2019 Volume 68 Issue 3 Pages 584-588
We report the isolation of an extended-spectrum β-lactamase (ESBL)-producing Salmonella sp. from a patient who had not traveled abroad. A 53-year-old man visited the Department of Emergency of Tokyo Jikei University School of Medicine, Daisan Hospital because of watery diarrhea 20 or more times a day. An ESBL-producing Salmonella sp. (Serotype O8) was isolated from his fecal specimens. As a result of PCR analysis and DNA sequencing, the genotype of ESBL was identified to be of the CTX-M-15 type, the rate of incidence of which has been increasing recently in Japan. The detection of this ESBL-producing Salmonella sp. from this patient without a history of overseas travel suggests that the species is already prevalent in Japan. For this reason, it is necessary to consider the presence of ESBL-producing bacteria in the selection of antimicrobial agents in cases suspected of Salmonella sp. involvement.
