An outbreak of listeriosis linked to turkey meat products in the Czech Republic, 2012–2016

T. Gelbíčová, M. Zobaníková, Z. Tomáštíková, I. Van Walle, W. Ruppitsch, R. Karpíšková
  • Epidemiology and Infection, June 2018, Cambridge University Press
  • DOI: 10.1017/s0950268818001565

An outbreak of listeriosis linked to turkey meat products in the Czech Republic, 2012-2016

What is it about?

Since 2012 to 2016 an increased number of listeriosis cases, especially from one region of the Czech Republic, were observed. Most of them were caused by strains of serotype 1/2a, clonal complex 8, indistinguishable by pulsed-field gel electrophoresis. Twenty-six human cases were reported, including two neonatal cases in twins. Three cases were fatal. The typing of L. monocytogenes isolates from food enabled to confirm a turkey meat delicatessen as the vehicle of infection for this local outbreak in the Moravian-Silesian Region. The food strains belonging to identical pulsotype were isolated from Ready-To-Eat (RTE) turkey meat products packaged by the same producer between 2012 and 2016. This fact confirms that the described L. monocytogenes outbreak strain probably persisted in the environment of the aforementioned food-processing plant over several years. Whole genome sequencing confirmed a very close relationship (zero to seven different alleles) between isolates from humans, foods and swabs from the environment of the food-processing plant under investigation.

Why is it important?

- outbreaks of listeriosis are difficult to investigate due to low prevalence, long incubation period - new methodological approach using WGS has been used for outbreak investigation - cgMLST enabled to identify outbreak of listeriosis precisely compared to previously used methods

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The following have contributed to this page: Renata Karpiskova