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Volume 17, Number 6—June 2011

Dispatch

Worldwide Distribution of Major Clones of Listeria monocytogenes

Viviane Chenal-Francisque1, Jodie Lopez1, Thomas Cantinelli, Valerie Caro, Coralie Tran, Alexandre Leclercq, Marc Lecuit2, and Sylvain Brisse2Comments to Author 
Author affiliations: Author affiliations: Institut Pasteur, Paris, France (V. Chenal-Francisque, J. Lopez, T. Cantinelli, V. Caro, C. Tran, A. Leclercq, M. Lecuit, S. Brisse); World Health Organization Collaborating Center for Listeria, Paris (V. Chenal-Francisque, A. Leclercq, M. Lecuit); Inserm Avenir U604, Paris (M. Lecuit); Université Paris Descartes, Paris (M. Lecuit)

Main Article

Table

Distribution of the major Listeria monocytogenes clonal complexes in lineages I and II among sources

Lineage or clonal complexes No. (%), by source
Human/food ratio
Total Human Food Animal Environment Unknown
Lineage I, total 199 (100) 88 (44) 60 (30) 16 (8) 24 (12) 11 (6) 1.60:1
CC1 (4b) 47 (100) 26 (55) 10 (21) 4 (9) 3 (6) 4 (9) 2.60:1
CC2 (4b) 64 (100) 36 (56) 13 (20) 6 (9) 5 (8) 4 (6) 2.77:1
CC3 (1/2b) 32 (100) 11 (34) 17 (53) 1 (3) 2 (6) 1 (3) 0.65:1
Other 4b 20 (100) 8 (40) 6 (30) 1 (5) 4 (20) 1 (5) 1.33:1
Other 1/2b
36 (100)
7 (19)
14 (39)
4 (11)
10 (28)
1 (3)
0.50:1
Lineage II, total 98 (100) 29 (30) 45 (46) 11 (11) 8 (8) 5 (5) 0.64:1
CC9 (1/2c) 28 (100) 7 (25) 14 (50) 2 (7) 3 (11) 2 (7) 0.50:1
Other, lineage II (1/2a) 70 (100) 22 (31) 31 (44) 9 (13) 5 (71) 3 (4) 0.71:1

Main Article

1These authors contributed equally to this study.

2These authors contributed equally to this study.

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