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Volume 31, Number 10—October 2025

Synopsis

Retrospective Analysis of Historical Listeria monocytogenes Clinical Isolates, New York, USA, 2000–20211

Hilal Samut, Damaris V. Mendez-Vallellanes, Hannah Hoyt, Samantha E. Wirth, Lisa Mingle, Brian D. Sauders, Gregory A. Deiulio, Alyssa W. Dickey, Maria L. Ishida, William J. Wolfgang, Martin Wiedmann, and Renato H. OrsiComments to Author 
Author affiliation: Cornell University, Ithaca, New York, USA (H. Samut, M. Wiedmann, R.H. Orsi); Wadsworth Center, New York State Department of Health, Albany, New York, USA (D. V. Mendez-Vallellanes, H. Hoyt, S.E. Wirth, L. Mingle, W.J. Wolfgang); New York State Department of Agriculture and Markets, Albany (B.D. Sauders, G.A. Deiulio, A.W. Dickey, M.L. Ishida)

Main Article

Figure 2

Distribution of clinical isolates within clusters (i.e., the isolates with pairwise SNP distance ≤20) in retrospective analysis of historical Listeria monocytogenes clinical isolates, New York, USA, 2000–2021. A) Distribution of isolates by New York county during 2000–2021 (except for the New York City [NYC] area); B) distribute of isolates in NYC during 2000–2004. The boroughs of NYC (Manhattan, Brooklyn, Queens, the Bronx, and Staten Island) were separated from New York counties outside NYC because of the limited number of isolates available for these regions.

Figure 2. Distribution of clinical isolates within clusters (i.e., the isolates with pairwise SNP distance ≤20) in retrospective analysis of historical Listeria monocytogenes clinical isolates, New York, USA, 2000–2021. A) Distribution of isolates by New York county during 2000–2021 (except for the New York City [NYC] area); B) distribute of isolates in NYC during 2000–2004. The boroughs of NYC (Manhattan, Brooklyn, Queens, the Bronx, and Staten Island) were separated from New York counties outside NYC because of the limited number of isolates available for these regions.

Main Article

1Preliminary results from this study were presented at the International Association for Food Protection Conference; July 14–17, 2024; Long Beach, California, USA.

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