Titre :
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A pseudo community outbreak of legionnaires'disease on Merseyside ; implications for investigation of suspected clusters. (2000)
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Auteurs :
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C.M. REGAN ;
K. MUTTON ;
Q. SYED ;
B. WIRATUNGA
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Type de document :
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Article
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Dans :
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Journal of epidemiology and community health (vol. 54, n° 10, 2000)
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Pagination :
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766-769
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Langues:
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Anglais
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Mots-clés :
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Maladie légionnaire
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Bactériose
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Infection
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Contamination
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Epidémiologie
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Etiologie
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Homme
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Etude cas
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Appareil respiratoire [pathologie]
;
Pneumonie
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Résumé :
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[BDSP. Notice produite par INIST lR0xDaV1. Diffusion soumise à autorisation]. During the winter of 1995, a space-time cluster of seven suspected cases of legionnaires'disease occurred on Merseyside, involving three neighbouring health districts. A multidisciplinary investigation team was established but failed to obtain convincing evidence of an outbreak. Investigation of the seven cases confirmed two as sporadic cases ; other infections were found to explain the remaining cases that had been initially confirmed presumptive cases on the basis of false positive Legionella pneumophila type 1 urine ELISA antigen test result. The epidemiological and clinical features of the unconfirmed cases were also not characteristic of legionnaires'disease. The investigation team concluded that this was a pseudo outbreak on the basis of detailed epidemiological investigation. This incident raised the importance of a strong index of suspicion when investigating suspected outbreaks of legionnaires'disease in the community wherever the results of one test have not been supported by others.
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