Nos différentes productions scientifiques

Muriel Guyard-Nicodème, Cyrielle Payen, Guillaume Larivière-Gauthier, Sophie Mompelat, Ségolène Quesne, Nagham Anis, Laetitia Bonifait, Laurent Guillier, Alassane Keita, Stéphanie Bougeard, Philippe Fravalo, and Marianne Chemaly. Co-inoculation of broilers by Campylobacter and Salmonella: effect on colonization, cecal microbiota and serum metabolome. Microbiology Spectrum (ASM01102-25R2)

Saegerman, C.; Quillery, E.; Leandri, M.; Raimond, V.; Kooh, P.; Fravalo, P.; Hoch, T.; Hansman, Y.; Boulanger, N. Expert Elicitation on Exposure to Tick Bites and Tick-Borne Encephalitis Risk in Occupational and Recreational Forest Activities. Viruses 2026, 18, 82. https://doi.org/10.3390/v18010082

Shedleur-Bourguignon F, Thériault WP, Berthiaume F, Doghri I, Longpré J, Thibodeau A, Fravalo P. Veillonella dispar and V. atypica increased the growth of Listeria monocytogenes in liquid culture and biofilm conditions. PLoS One. 2025 Nov 21;20(11):e0332852. doi: 10.1371/journal.pone.0332852. PMID: 41270087; PMCID: PMC12637975

Chagneau S, Gaucher ML, Fravalo P, Nouhaud E, Santin E, Lahaye L, Thibodeau A. Effects of exogenous protease supplementation of diets containing animal proteins or not on Campylobacter jejuni colonization and on the intestinal microbiota of broiler chickens. Gut Pathog. 2025 Oct 29;17(1):84. doi: 10.1186/s13099-025-00760-x. PMID: 41163065; PMCID: PMC12573867

Valentin Clédassou, Philippe Fravalo, Cyrielle Payen, Guillaume Larivière-Gauthier, Valérie Rose, et al.. Tool-based approach to explore metabolomic data and identify discriminant features: case study on the fecal metabolome of piglets exposed to a pathogen and/or a mycotoxin. Safepork 2025, ANSES; INRAE; IFIP, Oct 2025, Rennes, France. ⟨hal-05267311⟩

Valentin Clédassou, Philippe Fravalo, Cyrielle Payen, Guillaume Larivière-Gauthier, Valérie Rose, et al.. A machine learning approach reveals key determinants of the porcine fecal metabolome in the context of Salmonella colonization and/or deoxynivalenol intoxication. Safepork 2025, Oct 2025, Rennes, France. ⟨hal-05267278⟩

Caroline Le Maréchal, Jean-Pierre Ganière, Philippe Fravalo, François Meurens, Sophie Le Bouquin, et al.. Botulism outbreaks in livestock and wildlife: assessing public health risks through a one health approach

Manel Merad, Alexandre Thibodeau, Jean-Pierre Vaillancourt, Nikki Shariat, Marianne Chemaly, et al.. Characterizing Salmonella contamination diversity along the primary broiler chicken production chain. I3S 2025, Jun 2025, Saint-Malo, France 

Valentin Clédassou, Philippe Fravalo, Cyrielle Payen, Guillaume Larivière-Gauthier, Valérie Rose, et al.. A machine learning approach reveals key determinants of the porcine serum metabolome in the context of Salmonella colonization and/or deoxynivalenol intoxication. I3S 2025, Jun 2025, Saint-Malo, France. ⟨hal-05267095⟩

Muriel Guyard-Nicodème, Guillaume Larivière-Gauthier, Cyrielle Payen, Laëtitia Bonifait, Sophie Mompelat, et al.. Salmonella strikes harder in the presence of Campylobacter, fueling chicken colonization. I3S 2025, INNOZH, Jun 2025, Saint-Malo, France. ⟨anses-05191637⟩

Elissa Khamisse, Caroline Boudergue, Laëtitia Bonifait, Henri-Jean Boulouis, Lieven de Zutter, et al.. Adaptation of the French sampling plan for monitoring Salmonella spp. in laying hen flocks. I3S 2025, INNOZH, Jun 2025, Saint-Malo, France. ⟨anses-05192505⟩

Emmanuelle Gilot-Fromont, Isabelle Villena, Elsa Bonnaud, Claude Fischer, Etienne Giraud, et al.. Impacts sur la santé publique de la dynamique des populations de renards. Anses. 2025. ⟨hal-05124696⟩

Annaëlle Kerouanton, Valentin Clédassou. Individual and combined effects of deoxynivalenol (DON) exposure and Salmonella infection on Salmonella carriage, gut microbiota, and serum and fecal metabolome in pigs. Journée filière porc 2024, ANSES; INNÔZH, Nov 2024, Ploufragan, France. ⟨hal-05266884⟩

Georges Daube, Michel Federighi, Claire Le Henaff-Le Marrec, Philippe Fravalo, Frédéric Auvray, et al.. Avis de l’Anses relatif à l’évaluation du risque de transmission du complexe Mycobacterium tuberculosis à l'humain via la consommation de produits laitiers crus issus d’un élevage caprin infecté. Saisine n°2024-SA-0067, Anses. 2024, 26 p. ⟨anses-04854468⟩

Girard C, Chabrillat T, Kerros S, Fravalo P and Thibodeau A (2024) Essential oils mix effect on chicks ileal and caecal microbiota modulation: a metagenomics sequencing approach. Front. Vet. Sci. 11:1350151. doi: 10.3389/fvets.2024.1350151

Arsenault J, Côté G, Turgeon P, Tchamdja E, Parmley EJ, Daignault D, Bélanger M, Buczinski S, Fravalo P. Prevalence and Antimicrobial Resistance of Salmonella Dublin and Thermotolerant Campylobacter in Liver from Veal Calves in Québec, Canada. Foodborne Pathog Dis. 2024 Jan;21(1):19-26. doi: 10.1089/fpd.2023.0074. Epub 2023 Oct 19. PMID: 37855926.

Philippe Fravalo, Frédéric Auvray, Mickaël Boni, Frédéric Borges, Gilles Bornert, et al.. Avis de l'Anses relatif à la présence de parasites Toxocara spp. dans les viandes de sanglier sauvage. Saisine n°2023-SA-0055, Anses. 2023, pp.20. ⟨anses-04350896⟩

Vincent Piou, Caroline Vilarem, Solène Blanchard, Catherine Armengaud, Philipp Heeb, et al.. Varroa destructor relies on physical cues to feed in artificial conditions. Parasite, 2023, 30, ⟨10.1051/parasite/2023049⟩. ⟨hal-04299185⟩

Larivière-Gauthier, G.; Kerouanton, A.; Mompelat, S.; Bougeard, S.; Denis, M.; Fravalo, P. Monophasic Variant of Salmonella Typhimurium Infection Affects the Serum Metabolome in Swine. Microorganisms 2023, 11, 2565. https://doi.org/10.3390/microorganisms11102565

Caroline Vilarem, Vincent Piou, Solène Blanchard, Fanny Vogelweith, Angélique Vétillard. Lose Your Grip: Challenging Varroa destructor Host Attachment with Tartaric, Lactic, Formic, and Citric Acids. Applied Sciences, 2023, 13 (16), pp.9085. ⟨10.3390/app13169085⟩. ⟨hal-04210835⟩

Vincent Piou, Caroline Vilarem, Solène Blanchard, Jean-Marc Strub, Fabrice Bertile, et al.. Honey Bee Larval Hemolymph as a Source of Key Nutrients and Proteins Offers a Promising Medium for Varroa destructor Artificial Rearing. International Journal of Molecular Sciences, 2023, 24 (15), pp.1-19. ⟨10.3390/ijms241512443⟩. ⟨hal-04186784⟩

Emmanuelle Gilot-Fromont, Isabelle Villena, Elsa Bonnaud, Claude Fischer, Etienne Giraud, et al.. Évaluation des impacts sur la santé publique de la dynamique des populations de renards. Saisine n°2022-SA-0049, Anses. 2023, 200 p. ⟨anses-04171242⟩

Chagneau, S.; Gaucher, M.-L.; Fravalo, P.; Thériault, W.P.; Thibodeau, A. Intestinal Colonization of Campylobacter jejuni and Its Hepatic Dissemination Are Associated with Local and Systemic Immune Responses in Broiler Chickens. Microorganisms 2023, 11, 1677. https://doi.org/10.3390/microorganisms11071677

Bellerose, M., Fravalo, P., Mainville, I. et al. A short-term bioreactor assay to assess the effect of essential oils on a microbiota derived from piglet’s intestinal content. Acta Vet Scand 65, 17 (2023). https://doi.org/10.1186/s13028-023-00679-w

Philippe Fravalo, Frédéric Auvray, Mickaël Boni, Frédéric Borges, Gilles Bornert, et al.. Avis de l'Anses relatif à la définition des souches pathogènes d’Escherichia coli productrices de shigatoxines. Saisine n°2020-SA-0095, Anses. 2023, 63 p. ⟨anses-04171498⟩

Braley, C.; Gaucher, M.-L.; Fravalo, P.; Shedleur-Bourguignon, F.; Longpré, J.; Thibodeau, A. Slight Temperature Deviation during a 56-Day Storage Period Does Not Affect the Microbiota of Fresh Vacuum-Packed Pork Loins. Foods 2023, 12, 1695. https://doi.org/10.3390/foods12081695

Muhammad Tanveer Munir, Narjes Mtimet, Laurent Guillier, François Meurens, Phillipe Fravalo, et al.. Physical Treatments to Control Clostridium botulinum Hazards in Food. Foods, 2023, 12 (8), pp.1580. ⟨10.3390/foods12081580⟩. ⟨hal-04161814⟩

Claude Saegerman, Marie-France Humblet, Marc Leandri, Gaëlle Gonzalez, Paul Heyman, et al.. First expert elicitation of knowledge on possible drivers of observed increasing human cases of Tick-Borne Encephalitis in Europe. Viruses, 2023, 15 (3), pp.791. ⟨10.3390/v15030791⟩. ⟨hal-04037581⟩

Boucher E, Plazy C, Richard ML, Suau A, Mangin I, Cornet M, Aldebert D, Toussaint B, Hannani D. Inulin prebiotic reinforces host cancer immunosurveillance via ɣδ T cell activation. Front Immunol. 2023 Feb 17;14:1104224. doi: 10.3389/fimmu.2023.1104224. PMID: 36875124; PMCID: PMC9981629.

Chagneau S, Gaucher M-L, Thériault WP, Fravalo P and Thibodeau A (2023) Observations supporting hypothetical commensalism and competition between two Campylobacter jejuni strains colonizing the broiler chicken gut. Front. Microbiol. 13:1071175. doi: 10.3389/fmicb.2022.1071175

François Meurens, Frédéric Carlin, Michel Federighi, Maria-Eleni Filippitzi, Matthieu Fournier, et al.. Clostridium botulinum type C, D, C/D, and D/C: An update. Frontiers in Microbiology, 2023, 13, pp.1099184. ⟨10.3389/fmicb.2022.1099184⟩. ⟨hal-03963259⟩

Fanie Shedleur-Bourguignon, Tom Duchemin, William P. Thériault, Jessie Longpré, Alexandre Thibodeau, et al.. Distinct Microbiotas Are Associated with Different Production Lines in the Cutting Room of a Swine Slaughterhouse. Microorganisms, 2023, 11 (1), pp.133. ⟨10.3390/microorganisms11010133⟩. ⟨hal-04161798⟩

Marie-Louise Scippo, Pierre-Marie Badot, Gilles Bornert, Noémie Desriac, Florence Dubois-Brissonnet, et al.. Re‐evaluation of potassium nitrite (E 249) and sodium nitrite (E 250) as food additives. EFSA Journal, 2022, 15. ⟨hal-05211094⟩

Braley C, Fravalo P, Gaucher M-L, Larivière-Gauthier G, Shedleur-Bourguignon F, Longpré J and Thibodeau A (2022) Similar Carcass Surface Microbiota Observed Following Primary Processing of Different Pig Batches. Front. Microbiol. 13:849883. doi: 10.3389/fmicb.2022.849883

Cherifi, T.; Arsenault, J.; Quessy, S.; Fravalo, P. Co-Occurrence of L. monocytogenes with Other Bacterial Genera and Bacterial Diversity on Cleaned Conveyor Surfaces in a Swine Slaughterhouse. Microorganisms 2022, 10, 613. https://doi.org/10.3390/microorganisms10030613

Philippe Fravalo, Michel Federighi, Jean-Pierre Ganière, Lionel Grisot, Didier Hilaire, et al.. Évaluation des risques en appui des mesures de gestion de produits et sous-produits animaux dans la filière avicole, lors de suspicion et de confirmation des cas de botulisme. Saisine n°2019-SA-0114, Anses. 2022, 101 p. ⟨anses-03922620⟩

Michel Federighi, Claude Atgié, Mickaël Boni, Philippe Fravalo, Michel Gautier, et al.. Évaluation des critères pris en compte dans l’analyse de risque pour la programmation des contrôles officiels sous la responsabilité de la Direction générale de l’alimentation. Saisine n°2019-SA-0158, Anses. 2022, 155 p. ⟨anses-03922759⟩

Florence Dubois-Brissonnet, Frédéric Auvray, Olivier Cerf, Céline Delbès, Philippe Fravalo, et al.. Avis de l'Anses relatif aux modalités de maîtrise du risque lié à la présence de dangers microbiologiques dans les fromages et autres produits laitiers fabriqués à partir de lait cru. Saisine n° 2019-SA-0033, Anses. 2022, 126 p. ⟨anses-03889040⟩

Philippe Fravalo, Michel M. Federighi, Jean Pierre Ganière, Lionel Grisot, Didier Hilaire, et al.. Évaluation des risques en appui des mesures de gestion de produits dans la filière bovine, lors de suspicion et de confirmation de cas de botulisme. [0] Saisine n° 2019-SA-0112, Anses. 2021, 112 p. ⟨anses-03792909⟩

Thierry Koscielniak, Christian Cousquer, Maité Sylla-Iyarreta, Emmanuelle Galichet, Marie Debacq, et al.. Immersive training experience projects in high education: feedback and prospectives. EUNIS annual conference, Jun 2021, Athenes, Greece. ⟨hal-05069696⟩

François Meurens, Henri-Jean Boulouis, Frederic Carlin, Michel M. Federighi, Maria-Eleni Filippitzi, et al.. Clostridium botulinum : mise à jour des connaissances sur les différentes formes des types C, D, mosaïque C/D et D/C et E. [0] Saisines n°2019-SA-0112 (filière bovine); n° 2019-SA-0113 (nettoyage et désinfection); n° 2019-SA-0114 (filière avicole); n° 2019-SA-0115 (faune sauvage), Anses. 2021, 171 p. ⟨anses-03674557⟩

Philippe Fravalo, Pauline Kooh, Lapo Mughini-Gras, Julie David, Anne Thébault, et al.. Risk factors for sporadic campylobacteriosis: A systematic review and meta-analysis. Microbial Risk Analysis, 2021, 17, pp.100118. ⟨10.1016/j.mran.2020.100118⟩. ⟨anses-03436508⟩

Laurent Guillier, Anne Thébault, Philippe Fravalo, Lapo Mughini-Gras, Nathalie Jourdan-da Silva, et al.. Risk factors for sporadic salmonellosis: a systematic review and meta-analysis. Microbial Risk Analysis, 2021, 17, pp.100138. (10.1016/j.mran.2020.100138⟩. ⟨anses-03436993⟩

G Larivière-Gauthier, A. Thibodeau, É. Yergeau, P. Fravalo. Sows affect their piglets’ faecal microbiota until fattening but not their Salmonella enterica shedding status. Letters in Applied Microbiology, 2021, 72 (2), pp.113-120. ⟨10.1111/lam.13406⟩. ⟨hal-03590538⟩