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Volume 29, Number 12—December 2023

Research Letter

Genome-Based Characterization of Listeria monocytogenes, Costa Rica

María Giralt-Zúñiga12, Mauricio Redondo-Solano1, Alexandra Moura1, Nathalie Tessaud-Rita, Hélène Bracq-Dieye, Guillaume Vales, Pierre Thouvenot, Alexandre Leclercq, Carolina Chaves-Ulate, Kattia Núñez-Montero3, Rossy Guillén-Watson, Olga Rivas-Solano, Grettel Chanto-Chacón, Francisco Duarte-Martínez, Vanessa Soto-Blanco, Javier Pizarro-Cerdá, and Marc LecuitComments to Author 
Author affiliations: Institut Pasteur, Université Paris Cité, Inserm U1117, Biology of Infection Unit, National Reference Center, and WHO Collaborating Center Listeria, Paris, France (M. Giralt-Zúñiga, M. Redondo-Solano, A. Moura, N. Tessaud-Rita, H. Bracq-Dieye, G. Vales, P. Thouvenot, A. Leclercq, J. Pizarro-Cerdá, M. Lecuit); Instituto Tecnológico de Costa Rica, Cartago, Costa Rica (M. Giralt-Zúñiga, K. Núñez-Montero, R. Guillén-Watson, O. Rivas-Solano); University of Costa Rica, San José, Costa Rica (M. Redondo-Solano, C. Chaves-Ulate); Instituto Costarricense de Investigación y Enseñanza en Nutrición y Salud, Tres Rios, Costa Rica (G. Chanto-Chacón, F. Duarte-Martínez); National Animal Health Service, Heredia, Costa Rica (V. Soto-Blanco); Necker Enfants Malades University Hospital, APHP, Institut Imlagine, Paris (M. Lecuit)

Main Article

Table

Sequence types identified in a genome-based characterization of Listeria monocytogenes, Costa Rica*

cgMLST type CC Serogroup No. isolates (%)
 Food type Isolation years Genetic resistance traits
Total, n = 92 Clinical, n = 16 Nonclinical, n = 76
L1-SL2-ST2-CT2715
 CC2
 IVb
 8 (9)
 4 (25)
 4 (5)
 Dairy, meat
 2009, 2011, 2013, 2016–2017
 bcrABC, qacA, LGI-2
L1-SL2-ST2-CT6120
 CC2
 IVb
 10 (11)
 2 (13)
 8 (9)
 Dairy
 2010, 2013, 2016, 2018–2019
 qacA, LGI-2
L1-SL2-ST2-CT2718
 CC2
 IVb
 5 (5)
 1 (6)
 4 (5)
 Dairy
 2016, 2019
 qacA
L1-SL2-ST1251-CT2780
 CC2
 IVb
 3 (3)
 1 (6)
 2 (3)
 Meat
 2015–2016, 2018
 qacA
L1-SL3-ST3-CT2730
 CC3
 IIb
 9 (10)
 0
 9 (10)
 Fish, meat
 2016
 bcrABC, SSI-1
L1-SL2-ST2-CT6072
 CC2
 IVb
 5 (5)
 0
 5 (7)
 Dairy
 2019
 LGI-2
L1-SL2-ST1627-CT6041
 CC2
 IVb
 5 (5)
 0
 5 (7)
 Dairy
 2018–2019
 LGI-2
L1-SL87-ST847-CT65
 CC87
 IIb
 2 (2)
 0
 2 (3)
 Meat
 2016, 2019
 NA
L1-SL3-ST1262/ST2762-CT2781
 CC3
 IIb
 2 (2)
 0
 2 (3)
 Dairy
 2013
 SSI-1
L1-SL5-ST5-CT2793
 CC5
 IIb
 2 (2)
 0
 2 (3)
 Fish, meat
 2016
 bcrABC, SSI-1
L1-SL2-ST2-CT2762 CC2 IVb 2 (2) 0 2 (3) Mushrooms 2011 LGI-2

*Table includes types detected in this study comprising >2 isolates with a cutoff of 7 allelic differences, n = 11/48. CC, clonal complex; cgMLST, core-genome multilocus sequence typing; LGI, Listeria genomic island; NA, not applicable; SSI, stress survival islet.

Main Article

1These first authors contributed equally to this article.

2Current affiliation: Humboldt-Universität zu Berlin, Berlin, Germany.

3Current affiliation: Universidad Autónoma de Chile, Temuco, Chile.

Page created: October 13, 2023
Page updated: November 18, 2023
Page reviewed: November 18, 2023
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