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Volume 31, Number 4—April 2025
Research Letter

Genomic Characterization of Yersinia enterocolitica Isolates, Costa Rica

Cyril SavinComments to Author , Gletty Oropeza, Luis A. Barboza Fallas, Olga Rivas-Solano, Grettel Chanto, and Javier Pizarro-CerdáComments to Author 
Author affiliation: Institut Pasteur, Paris, France (C. Savin, J. Pizarro-Cerdá); Instituto Costarricense de Investigación y Ensenanza en Nutricion y Salud, Cartago, Costa Rica (G. Oropeza, G. Chanto); Instituto Tecnológico de Costa Rica, Cartago (L.A. Barboza Fallas, O. Rivas-Solano)

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Figure

Phylogenetic tree of 76 Yersinia enterocolitica genotype 4 isolates collected in Costa Rica, 2003–2023. The tree was reconstructed with IQ-TREE2 (http://www.iqtree.org) after alignment of the 1,727 genes of the cgMLST Y. enterocolitica. Columns show information on province (1), category (2), origin (3), antimicrobial resistance by drug (4–10), and by gene (11–18). Map (inset) shows cases by province. AMC, amoxicillin/clavulanic acid; AMO, amoxicillin; cgMLST, core genome multilocus sequence typing; CXN, cefalexin; FOX, cefoxitin; NAL, nalidixic acid; TET, tetracycline; TIC, ticarcillin.

Figure. Phylogenetic tree of 76 Yersinia enterocolitica genotype 4 isolates collected in Costa Rica, 2003–2023. The tree was reconstructed with IQ-TREE2 (http://www.iqtree.org) after alignment of the 1,727 genes of the cgMLST Y. enterocolitica. Columns show information on province (1), category (2), origin (3), antimicrobial resistance by drug (4–10), and by gene (11–18). Map (inset) shows cases by province. AMC, amoxicillin/clavulanic acid; AMO, amoxicillin; cgMLST, core genome multilocus sequence typing; CXN, cefalexin; FOX, cefoxitin; NAL, nalidixic acid; TET, tetracycline; TIC, ticarcillin.

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