Document Detail

Molecular subtyping of Staphylococcus aureus from an outbreak associated with a food handler.
MedLine Citation:
PMID:  11895086     Owner:  NLM     Status:  MEDLINE    
On 6 May 2000, a staphylococcal food poisoning outbreak occurred at a high school, affecting 10 of the 356 students who attended the breakfast. Twenty-seven Staphylococcus aureus isolates, producing enterotoxin A (SEA), SEB-, or non-SEA-E, were recovered from 7 patients, 2 food handlers and left-overs. To investigate the outbreak, we genotyped the isolates by using pulsed-field gel electrophoresis (PFGE) and three PCR-based techniques: inter-IS256 PCR typing, protein A gene (spa) typing, and coagulase gene restriction profile (CRP) analysis. Our results show that PFGE was the most discriminatory technique, whereas the three PCR-based techniques were insufficient in the discriminatory power to distinguish the S. aureus isolates from the outbreak. Based on the enterotoxin-producing types and the results of genotyping, three distinct types of strains (A1111, B2221 and N3221) were designated. Both the A1111 and B2221 strains were found in the specimens from the patients and a hand lesion of a food handler, suggesting that the source of contamination for the outbreak was most likely originated from a food handler.
H L Wei; C S Chiou
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Epidemiology and infection     Volume:  128     ISSN:  0950-2688     ISO Abbreviation:  Epidemiol. Infect.     Publication Date:  2002 Feb 
Date Detail:
Created Date:  2002-03-15     Completed Date:  2002-03-26     Revised Date:  2010-05-17    
Medline Journal Info:
Nlm Unique ID:  8703737     Medline TA:  Epidemiol Infect     Country:  England    
Other Details:
Languages:  eng     Pagination:  15-20     Citation Subset:  IM    
The Third Branch Office, Center for Disease Control, Department of Health, Taichung City, Taiwan.
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MeSH Terms
DNA, Bacterial / analysis
Disease Outbreaks*
Electrophoresis, Gel, Pulsed-Field
Enterotoxins / genetics
Feces / microbiology
Food Contamination*
Food Handling*
Polymerase Chain Reaction
Staphylococcal Food Poisoning / epidemiology*,  transmission
Staphylococcus aureus / genetics*,  pathogenicity*
Reg. No./Substance:
0/DNA, Bacterial; 0/Enterotoxins

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