1. Wild Boars as Reservoir of Highly Virulent Clone of Hybrid Shiga Toxigenic and Enterotoxigenic Escherichia coli Responsible for Edema Disease, France
- Author
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Alexandre Perrat, Priscilla Branchu, Anouk Decors, Silvia Turci, Marie-Hélène Bayon-Auboyer, Geoffrey Petit, Vladimir Grosbois, Hubert Brugère, Frédéric Auvray, Eric Oswald, LESUR, Hélène, Institut de Recherche en Santé Digestive (IRSD ), Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Ecole Nationale Vétérinaire de Toulouse (ENVT), Institut National Polytechnique (Toulouse) (Toulouse INP), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Institut National Polytechnique (Toulouse) (Toulouse INP), Université Fédérale Toulouse Midi-Pyrénées-Institut National de la Santé et de la Recherche Médicale (INSERM)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), Office français de la biodiversité (OFB), LABOCEA Laboratoire [Plouzané, France], Animal, Santé, Territoires, Risques et Ecosystèmes (UMR ASTRE), Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), Unité Mixte de Recherche d'Épidémiologie des maladies Animales et zoonotiques (UMR EPIA), VetAgro Sup - Institut national d'enseignement supérieur et de recherche en alimentation, santé animale, sciences agronomiques et de l'environnement (VAS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), Département Systèmes Biologiques (Cirad-BIOS), Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad), and This work was supported by the National Research Institute for Agriculture, Food, and Environment’s GISA metaprogram https://colloque.inrae.fr/metaprogramsworkshops_eng/Metaprograms/GISA) and by funding from the Région Occitanie (grant no. ALDOCT-000610) and Ministry of Agriculture awarded to A.P.
- Subjects
Microbiology (medical) ,Swine ,Epidemiology ,[SDV]Life Sciences [q-bio] ,Sus scrofa ,Infectious and parasitic diseases ,RC109-216 ,fluids and secretions ,Escherichia coli ,Stx2e ,Animals ,Edema ,Enterotoxigenic Escherichia coli ,Wild Boars as Reservoir of Highly Virulent Clone of Hybrid Shiga Toxigenic and Enterotoxigenic Escherichia coli Responsible for Edema Disease, France ,antimicrobial resistance ,bacteria ,Escherichia coli Infections ,F18 ,Shiga-Toxigenic Escherichia coli ,ETEC ,Research ,pigs ,edema disease ,biochemical phenomena, metabolism, and nutrition ,bacterial infections and mycoses ,Clone Cells ,[SDV] Life Sciences [q-bio] ,STEC ,Infectious Diseases ,[SDV.SPEE] Life Sciences [q-bio]/Santé publique et épidémiologie ,EDEC ,O139:H1 ,Sus domesticus ,Medicine ,[SDV.SPEE]Life Sciences [q-bio]/Santé publique et épidémiologie ,France ,enterotoxin ,wild boar - Abstract
International audience; Edema disease is an often fatal enterotoxemia caused by specific strains of Shiga toxin-producing Escherichia coli (STEC) that affect primarily healthy, rapidly growing nursery pigs. Recently, outbreaks of edema disease have also emerged in France in wild boars. Analysis of STEC strains isolated from wild boars during 2013-2019 showed that they belonged to the serotype O139:H1 and were positive for both Stx2e and F18 fimbriae. However, in contrast to classical STEC O139:H1 strains circulating in pigs, they also possessed enterotoxin genes sta1 and stb, typical of enterotoxigenic E. coli. In addition, the strains contained a unique accessory genome composition and did not harbor antimicrobial-resistance genes, in contrast to domestic pig isolates. These data thus reveal that the emergence of edema disease in wild boars was caused by atypical hybrid of STEC and enterotoxigenic E. coli O139:H1, which so far has been restricted to the wildlife environment.Keywords
- Published
- 2022