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Molecular fingerprinting defines a strain of Salmonella enterica serotype Anatum responsible for an international outbreak associated with formula-dried milk

Published online by Cambridge University Press:  01 October 1998

E. J. THRELFALL
Affiliation:
Laboratory of Enteric Pathogens, Central Public Health Laboratory, 61 Colindale Avenue, London NW9 5HT, UK
L. R. WARD
Affiliation:
Laboratory of Enteric Pathogens, Central Public Health Laboratory, 61 Colindale Avenue, London NW9 5HT, UK
M. D. HAMPTON
Affiliation:
Laboratory of Enteric Pathogens, Central Public Health Laboratory, 61 Colindale Avenue, London NW9 5HT, UK
A. M. RIDLEY
Affiliation:
Laboratory of Enteric Pathogens, Central Public Health Laboratory, 61 Colindale Avenue, London NW9 5HT, UK
B. ROWE
Affiliation:
Laboratory of Enteric Pathogens, Central Public Health Laboratory, 61 Colindale Avenue, London NW9 5HT, UK
D. ROBERTS
Affiliation:
Food Hygiene Laboratory, Central Public Health Laboratory, 61 Colindale Avenue, London NW9 5HT, UK
R. J. GILBERT
Affiliation:
Food Hygiene Laboratory, Central Public Health Laboratory, 61 Colindale Avenue, London NW9 5HT, UK
P. VAN SOMEREN
Affiliation:
Communicable Disease Surveillance Centre, Public Health Laboratory Service, 61, Colindale Avenue, London NW9 5EQ, U.K.
P. G. WALL
Affiliation:
Communicable Disease Surveillance Centre, Public Health Laboratory Service, 61, Colindale Avenue, London NW9 5EQ, U.K. Current address: Food Safety Authority of Ireland, Abbey Court, Lower Abbey Street, Dublin, Ireland.
P. GRIMONT
Affiliation:
Unites des Enterobacteries, Institut Pasteur, 28 Rue du Docteur Roux, F-75724 Paris Cedex 15, France
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Abstract

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Molecular analyses based on plasmid profile typing and pulsed-field gel electrophoresis have defined a strain of Salmonella enterica serotype Anatum associated with the consumption of a particular brand of formula-dried milk responsible for an outbreak in late 1996/early 1997 involving 15 infants and 2 relatives in the UK, and 2 infants in France. The study has demonstrated the value of laboratory-based surveillance involving identification of the outbreak strain at the molecular level coupled with food microbiology and targeted epidemiological investigations, and has highlighted the importance of rapid communication and subsequent international collaboration through the European Union-funded Salm-Net salmonella surveillance network.

Type
Research Article
Copyright
© 1998 Cambridge University Press