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Volume 26, Number 7—July 2020
Research

Large Nationwide Outbreak of Invasive Listeriosis Associated with Blood Sausage, Germany, 2018–2019

Sven Halbedel1Comments to Author , Hendrik Wilking1, Alexandra Holzer, Sylvia Kleta, Martin A. Fischer, Stefanie Lüth, Ariane Pietzka, Steliana Huhulescu, Raskit Lachmann, Amrei Krings, Werner Ruppitsch, Alexandre Leclercq, Rolf Kamphausen, Maylin Meincke, Christiane Wagner-Wiening, Matthias Contzen, Iris Barbara Kraemer, Sascha Al Dahouk, Franz Allerberger, Klaus Stark2, and Antje Flieger2Comments to Author 
Author affiliations: Robert Koch Institute, Wernigerode, Germany (S. Halbedel, M.A. Fischer, A. Flieger); Robert Koch Institute, Berlin, Germany (H. Wilking, A. Holzer, R. Lachmann, A. Krings, M. Meincke, K. Stark); German Federal Institute for Risk Assessment, Berlin (S. Kleta, S. Lüth, S.A. Dahouk); Freie Universität Berlin, Berlin (S. Lüth); Austrian Agency for Health and Food Safety, Vienna, Austria (A. Pietzka, S. Huhulescu, W. Ruppitsch, F. Allerberger); European Centre for Disease Prevention and Control, Stockholm, Sweden (A. Krings, M. Meincke); Institut Pasteur, Paris, France (A. Leclercq); Ministry for Environment, Agriculture, Conservation and Consumer Protection of the State of North Rhine-Westphalia, Düsseldorf, Germany (R. Kamphausen); State Health Office Baden-Wuerttemberg, Stuttgart, Germany (M. Meincke, C. Wagner-Wiening); Chemical and Veterinary Investigations Office, Fellbach, Germany (M. Contzen); Bavarian Health and Food Safety Authority, Oberschleißheim, Germany (I.B. Kraemer); Rheinisch-Westfälische Technische Hochschule, Aachen, Germany (S.A. Dahouk)

Main Article

Figure 1

Phylogenic tree constructed by using unweighted pair group method with arithmetic mean and core genome multilocus sequence typing data of Listeria monocytogenes isolates from a large listeriosis outbreak, Germany. Green indicates clinical isolates of Epsilon1a subcluster; blue indicates food isolates of Epsilon1a subcluster; pink indicates isolates from the Epsilon1 cluster; violet indicates 2 complex type 4465 isolates not belonging to Epsilon1a from earlier listeriosis cases in July 2017 and J

Figure 1. Phylogenic tree constructed by using unweighted pair group method with arithmetic mean and core genome multilocus sequence typing data of Listeria monocytogenes isolates from a large listeriosis outbreak, Germany. Green indicates clinical isolates of Epsilon1a subcluster; blue indicates food isolates of Epsilon1a subcluster; pink indicates isolates from the Epsilon1 cluster; violet indicates 2 complex type 4465 isolates not belonging to Epsilon1a from earlier listeriosis cases in July 2017 and June 2018; yellow indicates isolates from a listeriosis outbreak in South Africa (11); black indicates reference strain 10-092876-0769 LM12 used for SNP calling (Appendix Figure 2). Scale bar indicates allelic substitutions per site. SNP, single-nucleotide polymorphism.

Main Article

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1These authors contributed equally to this article.

2These authors contributed equally to this article.

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