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Journal Articles Veterinary Microbiology Year : 2022

Increasing incidence of Enterococcus-associated diseases in poultry in France over the past 15 years

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Abstract

Enterococci are commensal intestinal bacteria and opportunistic pathogens in humans and animals. Enterococcus-associated diseases are an emerging health issue in poultry. The aim of this retrospective study was to assess the occurrence of enterococci in poultry in France with regard to the manifested diseases and the affected avian species. Our analysis is based on veterinary laboratory data collected by the French poultry epidemiological surveillance network (RNOEA) that monitors avian diseases in France based on the voluntary participation of its veterinarian members. Since the creation of the network in 1989, 12, 177 Enterococcus cases have been reported by veterinary laboratories (Enterococcus cecorum 53.1% and Enterococcus faecalis 24.3%), with emergence starting in 2006, year in which Enterococcus represented 0.4% of all reported pathogens, and incidence growing to 12.9% in 2020. The main diseases associated with these reports were locomotor disorders 35.2% (mainly involving E. cecorum 77.9%), septicaemia 34.9% (involving E. cecorum 53.4% and E. faecalis 23.8%), and omphalitis 14.4% (mainly involving E. faecalis 59.5%). Most of these Enterococcus-associated diseases (71.5%) were reported in broilers (particularly affected by the locomotor disorders and septicaemia involving E. cecorum), accounting for 9.1% of all the diseases reported in this production sector, with an increase from 1.4% in 2006 to 17.2% in 2020. This study highlights the emergence of enterococcal diseases in poultry in France over the past 15 years and the need to maintain a surveillance system.
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anses-03658970 , version 1 (04-05-2022)

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Rozenn Souillard, Jeanne Laurentie, Isabelle Kempf, Virginie Le Caër, Sophie Le Bouquin, et al.. Increasing incidence of Enterococcus-associated diseases in poultry in France over the past 15 years. Veterinary Microbiology, 2022, pp.109426. ⟨10.1016/j.vetmic.2022.109426⟩. ⟨anses-03658970⟩
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