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Molecular epidemiology of Salmonella spp. isolates from gulls, fish-meal factories, feed factories, animals and humans in Norway based on pulsed-field gel electrophoresis

Published online by Cambridge University Press:  30 November 2004

L. L. NESSE ,
T. REFSUM ,
E. HEIR ,
K. NORDBY ,
T. VARDUND  and
G. HOLSTAD
L. L. NESSE
Affiliation:
Department of Bacteriology, National Veterinary Institute, Oslo, Norway
T. REFSUM
Affiliation:
Department of Bacteriology, National Veterinary Institute, Oslo, Norway
E. HEIR
Affiliation:
Norwegian Institute of Public Health, Oslo, Norway
K. NORDBY
Affiliation:
Department of Bacteriology, National Veterinary Institute, Oslo, Norway
T. VARDUND
Affiliation:
Norwegian Institute of Public Health, Oslo, Norway
G. HOLSTAD
Affiliation:
Department of Bacteriology, National Veterinary Institute, Oslo, Norway
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Abstract

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The molecular epidemiology of 98 isolates of Salmonella serovar Agona (n=27), S. Montevideo (n=42) and S. Senftenberg (n=29) from wild-living gulls, fish-meal factories, feed factories, humans and domestic animals was investigated using pulsed-field gel electrophoresis (PFGE) and computerized numerical analysis. Two of the S. Agona profiles were identified both in gulls and in two of the factories. In addition, one of these profiles was detected in two infected poultry farms. Two of the S. Montevideo profiles were also identified both in gulls and in two of the factories, and one of these profiles was observed in a human isolate. Four factories shared an identical S. Senftenberg profile. The S. Senftenberg profile found in gulls was not identified in any other source investigated. The presence of isolates with identical PFGE profiles indicates potential epidemiological links between different factories, as well as between gulls and factories.

Type
Research Article
Information
Epidemiology & Infection , Volume 133 , Issue 1 , February 2005 , pp. 53 - 58
Copyright
2004 Cambridge University Press