Between 2011 and 2012, a total of 896 pig fecal samples were collected from nine provinces in Korea, and 50
salmonella enterica susp.
enterica serovar Typhimurium (
S. Typhimurium) was isolated. The characteristics of the 50 strains were analyzed, and 4 strains were identified as
Salmonella enterica subsp.
enterica serovar 4,[5],12:i:-.
Salmonella 4,[5],12:i:- could not be distinguished from
S. Typhimurium through phage typing, antimicrobial resistance testing or multiple-locus variable-number tandem repeat analysis (MLVA). However, among the four
Salmonella 4,[5],12:i:- strains, one (KVCC-BA1400078) was identified as a
Salmonella 4,[5],12:i:- clone isolated from humans in the United States, and another (KVCC-BA1400080) was identified as DT193, which has been primarily isolated from humans and animals in European countries. The presence of
Salmonella 4,[5],12:i:- in Korea poses a significant threat of horizontal transfer between pigs and humans.
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