Antibiotic resistance and molecular characterization of the hydrogen sulfide-negative phenotype among diverse Salmonella serovars in China.

ABSTRACT:

Background

Among 2179 Salmonella isolates obtained during national surveillance for salmonellosis in China from 2005 to 2013, we identified 46 non-H₂S-producing strains originating from different sources.

Methods

The isolates were characterized in terms of antibiotic resistance and genetic variability by pulsed-field gel electrophoresis and multilocus sequence typing. Mutation in the phs operon, which may account for the non-H₂S-producing phenotype of the isolated Salmonella strains, was performed in this study.

Results

Among isolated non-H₂S-producing Salmonella strains, more than 50% were recovered from diarrhea patients, of which H₂S-negative S. Gallinarum, S. Typhimurium, S. Choleraesuis and S. Paratyphi A isolates const

SUBMITTER: Xie J 

PROVIDER: S-EPMC6029346 | biostudies-literature | 2018 Jul

REPOSITORIES: biostudies-literature