EURL
European Union Reference Laboratory for
Listeria monocytogenes
19th workshop - 3 online sessions
From 22 September 2025 to 18 November 2025
3 online sessions
3 online sessions
The meeting will be held online in three parts:
- Monday 22 September (10:00-12:00) dedicated to (1) shelf-life studies;
- Thursday 6 November (14:00-16:00) dedicated to (2) detection and enumeration;
- Tuesday 18 November (14:00-16:00) dedicated to (3) characterisation and typing.
Session 1: Shelf-life studies
Session 1: Shelf-life studies
22 September 10:00-12:00
22 September 10:00-12:00
★ Intro / Network update / Outro – Adrien Asséré
★ Regulatory update – Martial Plantady (EC DG SANTE)
★ DG SANTE Guide – Rubén Barcia-Cruz
★ Collection of strains for shelf-life studies – Rubén Barcia-Cruz
★ Update from ISO/TC 34/SC 9/WG 19 - Guidelines for conducting challenge tests – Rubén Barcia-Cruz
★ 2024 and 2026 proficiency tests – Ludivine Bonanno
Session 2: Detection and enumeration
Session 2: Detection and enumeration
6 November 14:00-16:00 and 14 November 13:00-14:00
6 November 14:00-16:00 and 14 November 13:00-14:00
★ Intro – Adrien Asséré
★ Outcome of the 2023 Zoonoses report: A - Human and B - animal, food & FBO – Taina Niskanen (ECDC) and Giusi Amore (EFSA)
★ 2025 Proficiency Tests on Detection and Enumeration - Léna Barre
★ Survey related to atypical strains/contaminants/new species – Nathalie Gnanou-Besse & Léna Barre
★ ISO/WG32 - Nathalie Gnanou-Besse & Léna Barre
★ Enumeration limit: low number - A and B - dPCR – Nathalie Gnanou-Besse & Aurélien Mondier Cassini
Part 3: Characterisation and Typing
Part 3: Characterisation and Typing
18 November 14h00-17h30
18 November 14h00-17h30
★ Intro / Outro – Adrien Asséré
★ EFSA One health WGS system with the inclusion of the upcoming regulatory requirements – Mirko Rossi (EFSA)
★ EURLs WG on NGS and related Guidances including QC – Maroua Sayeb
★ Accreditation WGS – Brian Byrne (IE)
★ New criteria for cgMLST typing PT ? – Aurélien Mondier Casini
★ 2024 and 2025 Typing PTs – Maroua Sayeb
★ Outbreak Simulation Exercise – Benjamin Félix
★ GenoListeria – Karine Capitaine
★ GenoListeria Detect – Benjamin Félix
NRLs Lm presentations:
★ Listeria monocytogenes species identification through WGS data – Alexandra Chiaverini (IT)
★ Lm prevalence and AMR among dairy products in Romania – Laurentiu Ciupescu (RO)
★ Persistence of Listeria monocytogenes in food processing environments: challenges and future directions (Article)– Gonçalo Almeida (PT)
★ From big data to detection: applying machine learning for source attribution in a One Health approach - case study on Listeria monocytogenes – Isis Lorenzo (ANSES)