le 29 Avril 2021, Jean Philippe Antignac du Laberca nous présentera les approches suspect et non-targeted pour caractériser l'exposition humaine dans le cadre du projet HBM4EU
Public Health England (UK-NRL Lm) has published its 2019 report on national surveillance of listeriosis in England and Wales.
Main figures:
142 cases of listeriosis were reported in England and Wales.
4 listeriosis outbreaks investigated in England, including a national outbreak associated with the consumption of prepacked hospital sandwiches.
Julien Parinet was interviewed by the Chlorexpo WG as part of the work developed by the AlimOmic team on the effects of cooking on the fate of Chlordecone. Yoann Devriendt-Renault is the PhD student working on this specific subject.
Thus, after presenting the main results obtained previously (Martin et al., 2020) and currently (Yoann Devriendt-Renault's thesis), Julien answered the experts' questions.
Effet des cuissons sur la Chlordecone
At the beginning of the 2021 another PhD student has been recruited.
Thierno Diallo from the Master Analytical Chemistry of the Rouen University has been recruited for Amphibie Ph.D thesis, which is part of AlimOmic. This Ph.D is in collaboration with La Rochelle University.
Thierno will work on the development of Quechers/Quppe - LC- HRMS methods in order to detect pesticides, veterinary products and microplastics in oysters and mussels from La Rochelle area in order to explain the high level of mortality of these organisms in this region and also along the Atlantic littoral.
The 'European Listeria Typing Exercise’ (ELiTE) is a collaborative study initiated in 2010 as a multi-sectorial, multi-centre exercise between led by ECDC, in association with EFSA, the EURL Lm, National Public Health Institutes, National Public Health Reference Laboratories, National Food Safety Authorities, food National Reference Laboratories for L. monocytogenes and involving indirectly, local and regional public health and food safety authorities. This study enabled the molecular characterisation of the strains isolated from either human cases or food during the baseline survey conducted over 2010 and 2011 by EFSA and DG SANTE. 3 categories of ready-to-eat food had been sampled: packaged hot or cold smoked or ‘gravad’ (cured) fish, soft or semi-soft cheeses, and packaged heat-treated meat products.
In the frame of this study, EURL Lm had in particular characterised the food strains for several EU Member States, had collected the characterisation and associated data of all the strains from food origin, and had curated their PFGE profiles. Strain typing was performed by PFGE and a correspondence with MSLT clonal complexes was implemented.
It was the 1st time that simultaneous characterisation of strains from human and food was conducted at European level to investigate possible combined clusters (human/food).
We invite you to read the "ECDC news story" and the joint report.
We would like to share with you this article* written jointly with the Polish NRL (National Institute of Hygiene, Warsaw) about a molecular investigation of the contamination of vegetables by Listeria monocytogenes.
The EURL Lm provided a support for PFGE and Genomic analysis. For PFGE, the EURL Lm provided a support for profile harmonisation and comparison with a substantial contribution to the article text and figures. For Genomic Analysis the EURL Lm performed the quality validation of the raw sequencing data and genomes assembly using his in house pipeline genomic pipeline ARTwork and performed cgMLST annotation using the ANSES calculation engine. The genomic analysis text and figures was written by the EURL Lm.
Our colleagues from the Czech Veterinary Reseach Institute published an article in Frontiers in Microbiology entitled Comparative Analysis of Genetic Determinants Encoding Cadmium, Arsenic, and Benzalkonium Chloride Resistance in Listeria monocytogenes of Human, Food, and Environmental Origin