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© Research
World Health Organization Collaboration Centres

Salmonella (WHO-CC)

Scientific Fields
Diseases
Organisms
Applications
Technique

About

Since 1964, the WHO-CC has been validating, naming and describing the new Salmonella types (about 10-20 every year). For this purpose, every year, 100-200 isolates are received for expertise from national reference centers all around the world. The analysis is free of charge and all isolates are kept forever in the WHO-CC collection (>6000 to date). This expertise is traditionally done by serotyping complemented, if necessary, by MLST and flagellar genes sequencing. Recently, all new types and variants are studied by whole-genome sequencing.

To carry out this expertise, the WHO-CC is helped by internationally recognized reference laboratories such as: the CDC, Atlanta, USA; IHU, Hamburg, Germany; PHE, Colindale, UK and WIV-ISP, Brussels, Belgium.

Maintaining and sharing the international nomenclature of Salmonella is of utmost importance for laboratory-based surveillance systems of Salmonella infections. This is also important for some WHO activities (e.g., strengthening integrated surveillance of foodborne diseases). By sharing new serotypes and associated whole-genome sequences, we will help the surveillance systems with different capacity levels.

The current edition of the White-Kauffmann-Le Minor scheme (describing all validated serotypes) can be found at  https://www.pasteur.fr/sites/default/files/veng_0.pdf (in English) or at https://www.pasteur.fr/sites/default/files/vf_0.pdf (in French).

 A new edition of the scheme will be published in 2018.

Contact

WHOCC Salmonella  /  Enteric Bacterial Pathogens Unit
28 rue du Docteur Roux -75724 PARIS Cedex 15-France.
Tel : + 33 (1) 45 68 83 45 (secretary: + 33 (1) 45 68 82 21) Fax : + 33 (1) 45 68 88 37
E-mail : francois-xavier.weill@pasteur.fr