Charlotte VALAT

34
Documents
Affiliation actuelle
  • Unité Epidémiologie et Appui à la Surveillance (EAS)
Identifiants chercheurs

Présentation

Scientist with 17+ years of experience working in the French Food Safety Agency. My activity focused on the characterization of the virulence of bacterial pathogens from beef and poultry. I am currently setting up a national surveillance system for food poisoning and developing projects to value Next-generation sequencing (NGS) data for food borne pathogen surveillance.

Domaines de recherche

Sciences du Vivant [q-bio]

Publications

Publications

Image document

A retrospective multivariate case-control approach to investigate factors influencing the sanitary quality of raw milk cheeses

Alisia Chiado Rana , Géraldine Cazeau , Stéphanie Bougeard , Kevin Bethune , Vincent Chochois et al.
Applied Food Research, 2024, 4 (2), pp.100617. ⟨10.1016/j.afres.2024.100617⟩
Article dans une revue anses-04816878 v1

F74 plasmids are major vectors of virulence genes in bovine NTEC2

Charlotte Valat , Marisa Haenni , Youssef Arnaout , Antoine Drapeau , Edouard Hirchaud et al.
Letters in Applied Microbiology, 2022, 75 (2), pp.355-362. ⟨10.1111/lam.13733⟩
Article dans une revue anses-03715577 v1

Challenging the growing rabbit with a moderately pathogenic E. coli under ad libitum or limited feed intake conditions: impact on digestive physiology, bacterial communities, and on post-weaning growth

M. Martignon , C. Burel , Dominique Licois , Elisabeth Répérant , G. Postollec et al.
World Rabbit Science, 2021, 29 (1), pp.1-10. ⟨10.4995/wrs.2021.14089⟩
Article dans une revue hal-03187454 v1

Characterization of cultivable airborne bacteria and their antimicrobial resistance pattern in French milking parlour

Sandrine Bayle , Antoine Drapeau , Janick Rocher , Frédéric Laurent , Véronique Métayer et al.
Environmental Science and Pollution Research, 2021, 28 (9), pp.11689-11696. ⟨10.1007/s11356-020-11974-8⟩
Article dans une revue hal-03128696 v1

Overall changes in the transcriptome of Escherichia coli O26:H11 induced by a subinhibitory concentration of ciprofloxacin

C. Valat , E. Hirchaud , A. Drapeau , F. Touzain , C. Boisseson et al.
Journal of Applied Microbiology, 2020, 129 (6), pp.1577-1588. ⟨10.1111/jam.14741⟩
Article dans une revue anses-04146571 v1
Image document

Pathogenic Escherichia coli in Dogs Reveals the Predominance of ST372 and the Human-Associated ST73 Extra-Intestinal Lineages

Charlotte Valat , Antoine Drapeau , Stéphanie Beurlet , Véronique Bachy , Henri-Jean Boulouis et al.
Frontiers in Microbiology, 2020, 11, pp.580. ⟨10.3389/fmicb.2020.00580⟩
Article dans une revue anses-04032477 v1

Variant O89 O-Antigen of E. coli Is Associated With Group 1 Capsule Loci and Multidrug Resistance

Susan Harris , Marta Piotrowska , Robert Goldstone , Ruby Qi , Geoffrey Foster et al.
Frontiers in Microbiology, 2018, 9 (4), pp.1308-1309. ⟨10.3389/fmicb.2018.02026⟩
Article dans une revue hal-04669210 v1
Image document

Complete sequence of transferable IncHI2/ST4 plasmid carrying blaCTX-M-1 and mcr-1 from an enterohaemorrhagic Escherichia coli (EHEC) from bovine origin

Charlotte Valat , Méganne Billet , Pierrick Lucas , Edouard Hirchaud , Fabrice Touzain et al.
Journal of Microbiology and Antimicrobial Agents, 2017, 3 (2), pp.34-37
Article dans une revue hal-04669057 v1

Absence of co-localization between pathovar-associated virulence factors and extended-spectrum β-lactamase (bla CTX-M) genes on a single plasmid

Charlotte Valat , Karine Forest , Méganne Billet , Charlène Polizzi , Estelle Saras et al.
Veterinary Microbiology, 2016, 192, pp.163-166. ⟨10.1016/j.vetmic.2016.07.011⟩
Article dans une revue anses-04388889 v1
Image document

Draft Genome Sequences of Enterohemorrhagic Escherichia coli Encoding Extended-Spectrum Beta-Lactamases

Charlotte Valat , Robert J Goldstone , Edouard Hirchaud , Marisa Haenni , David G E Smith et al.
Genome Announcements, 2016, 4 (1), pp.e01633-15. ⟨10.1128/genomeA.01633-15.⟩
Article dans une revue anses-04394195 v1

Assessment of Adhesins as an Indicator of Pathovar-Associated Virulence Factors in Bovine <em>Escherichia coli</em>

Charlotte Valat , Karine Forest , Frédéric Auvray , Véronique Métayer , Thomas Meheut et al.
Journal of Applied Microbiology, 2014, 80 (23), pp.7230-7234. ⟨10.1128/AEM.02365-14⟩
Article dans une revue hal-02634945 v1
Image document

Phylogenetic Grouping and Virulence Potential of Extended-Spectrum-β-Lactamase-Producing Escherichia coli Strains in Cattle

Charlotte Valat , Frédéric Auvray , Karine Forest , Véronique Métayer , Emilie Gay et al.
Applied and Environmental Microbiology, 2012, 78 (13), pp.4677-4682. ⟨10.1128/aem.00351-12⟩
Article dans une revue anses-04019333 v1

CTX-M-15 Extended-Spectrum beta-Lactamase in a Shiga Toxin-Producing Escherichia coli Isolate of Serotype O111:H8

Charlotte Valat , Marisa Haenni , Estelle Saras , Frédéric Auvray , Karine Forest et al.
Applied and Environmental Microbiology, 2012, 78 (4), pp.1308 - 1309. ⟨10.1128/AEM.06997-11⟩
Article dans une revue hal-02645520 v1

Transfer of melamine in some poultry products

C. Valat , P. Marchand , B. Veyrand , M. Amelot , Christine Burel et al.
Poultry Science, 2011, 90 (6), pp.1358-1363. ⟨10.3382/ps.2010-01205⟩
Article dans une revue hal-01985347 v1

Etude in vivo du transfert de la mélamine vers certaines productions avicoles, notamment oeufs et viande

Charlotte Valat , P. Le Marchand , B. Veyrand , Michel Amelot , Christine Burel et al.
TeMA, 2010, 16, pp.23-27
Article dans une revue hal-02059772 v1
Image document

Impact of deoxynivalenol on the intestinal microflora of pigs

Yann Wache , Charlotte Valat , Gilbert Postollec , Stephanie Bougeard , Christine Burel et al.
International Journal of Molecular Sciences, 2008, 10 (1), pp.1-17. ⟨10.3390/ijms10010001⟩
Article dans une revue hal-01985348 v1
Image document

The use of field studies to establish the performance of a range of tools for monitoring water quality

Benoît Roig , Charlotte Valat , Ian John Allan , Richard Greenwood , Catherine Berho et al.
Trends in Analytical Chemistry, 2007, 26 (4), pp.274-282. ⟨10.1016/j.trac.2007.02.005⟩
Article dans une revue istex hal-01662709 v1

Using bioluminescent biosensors for hazard analysis and critical control point (HACCP) in wastewater control

C. Valat , D. Champiat , J.-R. Degorce-Dumas , O. Thomas
Water Science and Technology, 2004, 49 (1), pp.131-138. ⟨10.2166/wst.2004.0038⟩
Article dans une revue hal-04664791 v1

Use of ATP bioluminescence to determine the bacterial sensitivity threshold to a bacteriocin

Charlotte VALAT , Dominique Champiat , Thi Thanh Thuy N'Guyen , Gérard Loiseau , Maurice Raimbault et al.
Luminescence, 2003, 18 (5), pp.254-258. ⟨10.1002/bio.735⟩
Article dans une revue istex hal-04669212 v1

Comportement de porte-greffes résistants à la chlorose dans le vignoble de Tavel : résultats de 9 années d'expérimentation

C. Valat , M-Helene Valadier , Renaud Pouget , M. Ottenwaelter
Le Progrès agricole et viticole [Publications et Actualités Vitivinicoles], 1988, 105 (18), pp.407-410
Article dans une revue hal-02723226 v1

Réponse digestive du lapereau à une inoculation expérimentale colibacillaire (O128:C6) en fonction du niveau d'ingestion

Mélanie Martignon , Dominique Licois , Laurent Cauquil , M. Amelot , Sylvie Combes et al.
14. Journées de la Recherche Cunicole, Nov 2011, Le Mans, France
Communication dans un congrès hal-02746773 v1
Image document

Specific targeted research project Poultryflorgut

Charlotte Valat , Frédéric Bousquié , Christine Burel
16. European Symposium on poultry Nutrition, Aug 2007, Strasbourg, France
Communication dans un congrès hal-02018417 v1
Image document

Effect of probiotic or antimicrobial treatments on the intestinal bacterial community in pigs

Elisabeth Reperant , T. Hadiouche , Gilbert Postollec , Eric Boilletot , Christine Burel et al.
Animal hygiene and sustainable livestock production. Proceedings of the XVth International Congress of the International Society for Animal Hygiene, Tribun EU s. r. o, 595 p., 2011, 9788026300083
Chapitre d'ouvrage hal-02052968 v1

The effect of feed on the host-microflora interactions in poultry: an overview

Christine Burel , Charlotte Valat
Sustainable Animal Production, the challenges and potential developments for professional farming, Wagenigen Academic Publishers, The Netherlands, 18 p., 2009, 9789086860999
Chapitre d'ouvrage hal-02059773 v1
Image document

Chapter 4: Evaluation of the field performance of emerging water quality monitoring tools

Catherine Berho , Nathalie Guigues , Anne Togola , Anne-Marie Fouillac , Ian J. Allan et al.
C. Gonzalez, R. Greenwood and P. Quevauviller. Rapid Chemical and Biological Techniques for Water Monitoring, John Wiley & Son, pp.287-300, 2009
Chapitre d'ouvrage hal-01669182 v1