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. 2006 Oct;101(4):864-71.
doi: 10.1111/j.1365-2672.2006.02957.x.

Molecular analysis of Staphylococcus aureus isolates associated with staphylococcal food poisoning in South Korea

J O Cha  1 , J K Lee, Y H Jung, J I Yoo, Y K Park, B S Kim, Y S Lee
Affiliations

Molecular analysis of Staphylococcus aureus isolates associated with staphylococcal food poisoning in South Korea

J O Cha et al. J Appl Microbiol. 2006 Oct.

Abstract

Aims: To investigate the molecular epidemiological study of Staphylococcus aureus from staphylococcal food poisoning (SFP) incidents in South Korea.

Methods and results: Three hundred and thirty-two strains isolated from ten provinces between June 1999 and January 2002 were characterized by staphylococcal enterotoxin genes, toxic shock syndrome toxin 1 (tst) gene, and exfoliative toxin genes. Toxin genotypes were sea-seh (n=197), sea (n=51), sea-seg-sei (n=14), seg-sei (n=10), seb (n=10), seb-sed-seg-sei-sej (n=3), sea-seg-seh-sei (n=1), sea-seb (n=1), sea-sec (n=1), seg-sei plus eta (n=4), and sea-seg-sei plus tst (n=40). Most of the strains could be classified into three clusters of pulsed-field gel electrophoresis (PFGE) types A and B with coagulase type VII and type E with coagulase type IV. Of the ten sequence types (ST), ST1, ST59, and ST30 were frequently showed by multilocus sequence typing.

Conclusions: The strain belonging to PFGE pattern A with sea-seh gene, coagulase VII, and ST1 was the most epidemic clone of SFP incidents in Korea.

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