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Volume 23, Number 9—September 2017

Research

Real-Time Whole-Genome Sequencing for Surveillance of Listeria monocytogenes, France

Alexandra Moura1, Mathieu Tourdjman1, Alexandre Leclercq1, Estelle Hamelin, Edith Laurent, Nathalie Fredriksen, Dieter Van Cauteren, Hélène Bracq-Dieye, Pierre Thouvenot, Guillaume Vales, Nathalie Tessaud-Rita, Mylène M. Maury, Andreea Alexandru, Alexis Criscuolo, Emmanuel Quevillon, Marie-Pierre Donguy, Vincent Enouf, Henriette de Valk, Sylvain Brisse2, and Marc Lecuit2Comments to Author 
Author affiliations: Institut Pasteur, Paris, France (A. Moura, A. Leclercq, H. Bracq-Dieye, P. Thouvenot, G. Vales, N. Tessaud-Rita, M. Maury, A. Alexandru, A. Criscuolo, E. Quevillon, V. Enouf, S. Brisse, M. Lecuit); Institut National de la Santé et de la Recherche Médicale Unité 1117, Paris (A. Moura, M.M. Maury, M. Lecuit); Santé Publique France, Saint-Maurice, France (M. Tourdjman, E. Laurent, D. Van Cauteren, H. de Valk); Ministry of Agriculture, Agrifood, and Forestry, Paris (E. Hamelin, N. Fredriksen, M.-P. Donguy); Paris Descartes University, Paris (M. Lecuit); Necker-Enfants Malades University Hospital, Paris (M. Lecuit)

Main Article

Table 3

Source identification of cgMLST cluster-alerts for surveillance of Listeria monocytogenes, France*

cgMLST cluster-alert size, no. human isolates No. (%)
Clusters, n = 119 Human isolates, n = 770 Food/environment isolates, n = 1,973 Clusters with confirmed source Cluster-alerts with identified source resulting in withdrawal or recall
Small, 1 37 (31) 37 (5) 145 (7) 10 (27) 3 (30)
Medium, 2–5 73 (61) 185 (24) 123 (6) 9 (12) 5 (55)
Large, >5 9 (8) 89 (12) 83 (4) 3 (38) 0

*cgMLST, core genome multilocus sequence typing.

Main Article

1These authors contributed equally to this article.

2These authors were co-senior authors.

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