Serotyping and Antimicrobial Susceptibility of Salmonella Isolated in Korea in 2015
- Author:
Si Hyun KIM
1
;
Eun Hee PARK
;
In Yeong HWANG
;
Hyukmin LEE
;
Sae Am SONG
;
Miae LEE
;
Seungok LEE
;
Soo Young KIM
;
Jin Ju KIM
;
Jong Hee SHIN
;
Seong Geun HONG
;
Kyeong Seob SHIN
;
Sunjoo KIM
;
Nam Hee RYOO
;
Woonhyoung LEE
;
Sook Jin JANG
;
Jeong Hwan SHIN
Author Information
- Publication Type:Original Article
- Keywords: Antimicrobial resistance; Salmonella; Serotype
- MeSH: Ampicillin; Anti-Bacterial Agents; Ceftriaxone; Chloramphenicol; Ciprofloxacin; Diffusion; Gastroenteritis; Hospitals, University; Humans; Immune Sera; Korea; Methods; Prevalence; Salmonella; Sepsis; Serogroup; Serotyping
- From:Annals of Clinical Microbiology 2019;22(3):55-60
- CountryRepublic of Korea
- Language:Korean
- Abstract: BACKGROUND: Salmonella is an important pathogen that causes gastroenteritis and sepsis in humans. Recently, changes in serotype prevalence and an increase in antimicrobial resistance have been reported. This study investigated the distribution of Salmonella serotypes and determined the antimicrobial susceptibility of various strains. METHODS: We collected 113 Salmonella isolates other than Salmonella serotype Typhi from 18 university hospitals in 2015. The serotypes were identified by Salmonella antisera O and H according to the Kauffman White scheme. Antimicrobial susceptibility tests for 12 antibiotics were performed using the disk diffusion method or E-test. RESULTS: We identified 22 serotypes. Serotype group B (44.2%) was the most common, followed by groups C (34.5%) and D (21.2%). Salmonella I 4,[5],12:i:- (23.0%), S. Enteritidis (16.8%), and S. Typhimurium (12.4%) were the most common species. Resistance rates for ampicillin, chloramphenicol, ceftriaxone, and trimethoprim/sulfamethoxazole were 46.9%, 18.5%, 8.8%, and 5.3%, respectively. The intermediate resistance rate to ciprofloxacin was 29.2%. Six isolates were extended-spectrum β-lactamase (ESBL) producers, including 5 bla(CTX-M-15) and 1 bla(CTX-M-55). CONCLUSION: There have been changes in the serotype prevalence and antimicrobial resistance of Salmonella in Korea, with a high prevalence of CTX-M 15-positive strains. Continuous monitoring of Salmonella serotypes and antimicrobial resistance is warranted.
