Charlotte VALAT

35
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

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Bacterial and farm management risk factors in raw milk cheese production

Alisia Chiadò Rana , Géraldine Cazeau , Stéphanie Bougeard , Kevin Bethune , Vincent Chochois et al.

Conference Society for Veterinary Epidemiology and Preventive Medicine (SVEPM), Mar 2025, Berlin, Germany. 86, 2018

Poster de conférence anses-05151336v1
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SOA8 – WGS surveillance of animal pathogens and AMR (SPAMR-VET) –ST2.1, ST2.2

Lucie Collineau , Charlotte Valat , Anouk Rioual , Anne Margrete Urdahl , Camilla Sekse

European Partnership on Animal Health and Welfare Scientific Workshop (EUPAHW), Jun 2024, Thessalonique, Greece. Poster

Poster de conférence anses-04600896v1
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Exploring the Bacterial Communities During the Artisanal Production of Uncooked Pressed Cheese From Raw Bovine Milk

Alisia Chiadò , Charlotte Valat , Géraldine Cazeau , Kevin Béthune , Vincent Chochois et al.

IUMS 2024, Oct 2024, Florence, Italy. , pp.Poster

Poster de conférence anses-04827345v1
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Characterization of bacterial communities during bovine raw milk and artisanal uncooked pressed cheese production: Implications for dairy products safety and quality

Alisia Chiadò Rana , Charlotte Valat , Géraldine Cazeau , Kevin Bethune , Vincent Chochois et al.

13th European Farmhouse and Artisan Cheese & Dairy Meeting, Oct 2023, Grangeneuve, Switzerland. Poster

Poster de conférence anses-04416932v1

Digestive response of young rabbits to an experimental reproduction of colibacillosis according to two feeding strategies

Mélanie Martignon , E. Repérant , Dominique Licois , C. Valat

VETPATH 2010 -First Prato Conference on the Pathogenesis of Bacterial Diseases of Animals., Oct 2010, Prato, Italy. , pp.1, 2010

Poster de conférence hal-02821536v1
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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-04816878v1

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-03715577v1

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-03128696v1

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-03187454v1

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-04146571v1
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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-04032477v1

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-04669210v1
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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-04669057v1
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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-04394195v1

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-04388889v1

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-02634945v1
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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-04019333v1

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-02645520v1

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-01985347v1

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-02059772v1
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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-01985348v1
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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-01662709v1

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-04664791v1

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-04669212v1

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-02723226v1

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-02746773v1
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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-02018417v1
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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-02052968v1

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-02059773v1
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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-01669182v1