Document Detail

Salmonella Enteritidis phage type 21 outbreak in Austria, 2005.
MedLine Citation:
PMID:  16525195     Owner:  NLM     Status:  MEDLINE    
We report an outbreak of gastroenteritis due to Salmonella Enteritidis PT 21 associated with attending an annual traditional fair in a small Austrian village on 4 May 2005. The outbreak lasted from 4 to 8 May. Descriptive and analytical epidemiological investigations were conducted in order to determine the extent of the outbreak and to identify outbreak risk factors. Of the 115 persons who visited the fair, 85 persons fulfilled the criteria of an outbreak case (attack rate = 73.9%). Stool specimens from 52 patients, including two kitchen staff, were tested for salmonella, and 20 specimens were positive for Salmonella Enteritidis PT 21. The cohort study revealed mixed salad (which included potatoes) as the likely cause of the outbreak (RR: 10.4, 95%CI 2.8 - 39.1; P = < 0.001). The causative agent of the outbreak was cultured from the stock of eggs used at the fair and from all three drag swabs and one barn dust sample collected from the responsible egg laying flock. Molecular subtyping by pulsed-field gel electrophoresis of genomic DNA after XbaI digestion showed that isolates from eggs, from the flock and from humans were indistinguishable. We hypothesise that cross contamination from eggs to boiled potatoes occurred in the kitchen area, where raw eggs were handled by village residents preparing a traditional Viennese egg dressing. Unrefrigerated storage of peeled potatoes may have favoured bacterial growth. Eggs from small rural flocks of laying hens kept in a traditional 'natural' way should not be assumed to be salmonella-free.
D Schmid; S Schandl; A M Pichler; C Kornschober; C Berghold; A Beranek; G Neubauer; M Neuhold-Wassermann; W Schwender; A Klauber; A Deutz; P Pless; F Allerberger
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Euro surveillance : bulletin Européen sur les maladies transmissibles = European communicable disease bulletin     Volume:  11     ISSN:  1560-7917     ISO Abbreviation:  Euro Surveill.     Publication Date:  2006  
Date Detail:
Created Date:  2006-09-15     Completed Date:  2006-10-03     Revised Date:  2013-05-01    
Medline Journal Info:
Nlm Unique ID:  100887452     Medline TA:  Euro Surveill     Country:  France    
Other Details:
Languages:  eng     Pagination:  67-9     Citation Subset:  IM    
Osterreichische Agentur fur Gesundheit und Ernahrungssicherheit, Vienna, Austria.
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MeSH Terms
Aged, 80 and over
Austria / epidemiology
Bacteriophage Typing*
Child, Preschool
Cohort Studies
Eggs / microbiology
Middle Aged
Salmonella Food Poisoning / epidemiology*
Salmonella enteritidis / classification*,  isolation & purification

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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