Multistate outbreak of Escherichia coli O157:H7 infections associated with a national fast-food chain, 2006: a study incorporating epidemiological and food source traceback results.
Epidemiol Infect
; 139(2): 309-16, 2011 Feb.
Article
en En
| MEDLINE
| ID: mdl-20429971
ABSTRACT
A multistate outbreak of Escherichia coli O157H7 infections occurred in the USA in November-December 2006 in patrons of restaurant chain A. We identified 77 cases with chain A exposure in four states - Delaware, New Jersey, New York, and Pennsylvania. Fifty-one (66%) patients were hospitalized, and seven (9%) developed haemolytic uraemic syndrome; none died. In a matched analysis controlling for age in 31 cases and 55 controls, illness was associated with consumption of shredded iceberg lettuce [matched odds ratio (mOR) 8·0, 95% confidence interval (CI) 1·1-348·1] and shredded cheddar cheese (mOR 6·2, CI 1·7-33·7). Lettuce, an uncooked ingredient, was more commonly consumed (97% of patients) than cheddar cheese (84%) and a single source supplied all affected restaurants. A single source of cheese could not explain the regional distribution of outbreak cases. The outbreak highlights challenges in conducting rapid multistate investigations and the importance of incorporating epidemiological study results with other investigative findings.
Texto completo:
1
Bases de datos:
MEDLINE
Asunto principal:
Restaurantes
/
Brotes de Enfermedades
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Escherichia coli O157
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Infecciones por Escherichia coli
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Comida Rápida
Tipo de estudio:
Etiology_studies
/
Observational_studies
/
Prognostic_studies
/
Risk_factors_studies
Límite:
Humans
País/Región como asunto:
America do norte
Idioma:
En
Revista:
Epidemiol Infect
Asunto de la revista:
DOENCAS TRANSMISSIVEIS
/
EPIDEMIOLOGIA
Año:
2011
Tipo del documento:
Article
País de afiliación:
Estados Unidos