Document Detail


An outbreak of Campylobacter jejuni associated with consumption of chicken, Copenhagen, 2005.
MedLine Citation:
PMID:  16757851     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
In May/June 2005 an outbreak of diarrhoeal illness occurred among company employees in Copenhagen. Cases were reported from seven of eight companies that received food from the same catering kitchen. Stool specimens from three patients from two companies were positive for Campylobacter jejuni. We performed a retrospective cohort study among employees exposed to canteen food in the three largest companies to identify the source of the outbreak and to prevent further spread. Using self-administered questionnaires we collected information on disease, days of canteen food eaten and food items consumed. The catering kitchen was inspected and food samples were taken. Questionnaires were returned by 295/348 (85%) employees. Of 247 employees who ate canteen food, 79 were cases, and the attack rate (AR) was 32%. Consuming canteen food on 25 May was associated with illness (AR 75/204, RR=3.2, 95%CI 1.3-8.2). Consumption of chicken salad on this day, but not other types of food, was associated with illness (AR=43/97, RR=2.3, 95%CI 1.3-4.1). Interviews with kitchen staff indicated the likelihood of cross-contamination from raw chicken to the chicken salad during storage. This is the first recognised major Campylobacter outbreak associated with contaminated chicken documented in Denmark. It is plausible that food handling practices contributed to transmission, and awareness of safe food handling and storage has since been raised among kitchen staff. The low number of positive specimens accrued in this outbreak suggests a general underascertainment of adult cases in the laboratory reporting system by a factor of 20.
Authors:
A Mazick; S Ethelberg; E Møller Nielsen; K Mølbak; M Lisby
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:  2006-09-18     Completed Date:  2006-10-12     Revised Date:  2013-05-01    
Medline Journal Info:
Nlm Unique ID:  100887452     Medline TA:  Euro Surveill     Country:  France    
Other Details:
Languages:  eng     Pagination:  137-9     Citation Subset:  IM    
Affiliation:
European Programme for Intervention Epidemiology Training (EPIET), Department of Epidemiology, Statens Serum Institut, Denmark.
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MeSH Terms
Descriptor/Qualifier:
Animals
Campylobacter Infections / epidemiology*,  microbiology
Campylobacter jejuni / isolation & purification*
Chickens / microbiology
Cohort Studies
Denmark / epidemiology
Disease Outbreaks / statistics & numerical data*
Food Contamination / statistics & numerical data*
Foodborne Diseases / epidemiology*,  microbiology
Gastroenteritis / epidemiology*,  microbiology
Humans
Incidence
Meat / microbiology
Population Surveillance*
Retrospective Studies
Risk Assessment / methods
Risk Factors
Comments/Corrections
Erratum In:
Euro Surveill. 2006 May;11(5):1 p following 139

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


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