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Molecular epidemiology of Coxiella burnetii in French livestock reveals the existence of three main genotype clusters and suggests species-specific associations as well as regional stability.
Joulié, Aurelien; Sidi-Boumedine, Karim; Bailly, Xavier; Gasqui, Patrick; Barry, Séverine; Jaffrelo, Lydia; Poncet, Charles; Abrial, David; Yang, Elise; Leblond, Agnès; Rousset, Elodie; Jourdain, Elsa.
Afiliación
  • Joulié A; EPIA, INRA, 63122 Saint-Genès Champanelle, France; Université de Lyon, VetAgro Sup, 69280 Marcy l'Etoile, France; Anses (French Agency for Food, Environmental, and Occupational Health and Safety), Laboratory of Sophia Antipolis, Animal Q Fever Unit, Sophia Antipolis, France.
  • Sidi-Boumedine K; Anses (French Agency for Food, Environmental, and Occupational Health and Safety), Laboratory of Sophia Antipolis, Animal Q Fever Unit, Sophia Antipolis, France.
  • Bailly X; EPIA, INRA, 63122 Saint-Genès Champanelle, France.
  • Gasqui P; EPIA, INRA, 63122 Saint-Genès Champanelle, France.
  • Barry S; EPIA, INRA, 63122 Saint-Genès Champanelle, France.
  • Jaffrelo L; GDEC, INRA, 63039 Clermont-Ferrand, France.
  • Poncet C; GDEC, INRA, 63039 Clermont-Ferrand, France.
  • Abrial D; EPIA, INRA, 63122 Saint-Genès Champanelle, France.
  • Yang E; Anses (French Agency for Food, Environmental, and Occupational Health and Safety), Laboratory of Sophia Antipolis, Animal Q Fever Unit, Sophia Antipolis, France.
  • Leblond A; EPIA, INRA, 63122 Saint-Genès Champanelle, France; Université de Lyon, VetAgro Sup, 69280 Marcy l'Etoile, France.
  • Rousset E; Anses (French Agency for Food, Environmental, and Occupational Health and Safety), Laboratory of Sophia Antipolis, Animal Q Fever Unit, Sophia Antipolis, France.
  • Jourdain E; EPIA, INRA, 63122 Saint-Genès Champanelle, France. Electronic address: elsa.jourdain@inra.fr.
Infect Genet Evol ; 48: 142-149, 2017 03.
Article en En | MEDLINE | ID: mdl-28007602
Q fever is a worldwide zoonosis caused by the bacterium Coxiella burnetii. In domestic ruminants, Q fever main clinical manifestations are abortions. Although the clinical signs may differ between ruminant species, C. burnetii's genetic diversity remains understudied in enzootic areas. Here, we focused on France, where Q fever is enzootic, with the aims to (a) identify potential associations between C. burnetii genotypes and ruminant host species; (b) assess the distribution of C. burnetii genotypes both within French farms and across France's major livestock-farming regions; and (c) suggest a subset of markers for future genotypic studies. We used DNA samples collected between 2006 and 2015 from 301 females (160 cows, 76 ewes, 65 goats) aborted of Q fever within 7 different farming regions. C. burnetii diversity was determined using a multiple-locus variable-number of tandem repeat analysis (MLVA) considering 17 markers. Using a phylogenetic approach, we identified 3 main genotypic clusters divided into 12 sub-clusters. These clusters were significantly associated with ruminant species: almost all the cattle genotypes were found in a "cattle-specific" cluster whereas small ruminants genotypes essentially grouped into the two other clusters. The clusters also proved stable over space and time, some genotypes being more specifically observed in certain farming regions. We also observed some within-farm diversity but this diversity was restricted to a same genotypic cluster. Finally, we identified 6 MLVA markers that maximized the representativeness of the diversity described. Overall, we highlighted that molecular epidemiology is a relevant approach to assess C. burnetii's genetic diversity and to reveal the existence of species-specific associations and regional stability. These results will be valuable in the field to trace genotype circulation among ruminants and from ruminants to humans. Ultimately, the potential links between genotypes and virulence traits need to be investigated to adapt control measures in livestock farms.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Fiebre Q / Enfermedades de las Ovejas / Enfermedades de los Bovinos / Enfermedades de las Cabras / Coxiella burnetii / Aborto Veterinario Tipo de estudio: Prognostic_studies / Risk_factors_studies / Screening_studies Límite: Animals Idioma: En Revista: Infect Genet Evol Asunto de la revista: BIOLOGIA / DOENCAS TRANSMISSIVEIS / GENETICA Año: 2017 Tipo del documento: Article País de afiliación: Francia Pais de publicación: Países Bajos

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Fiebre Q / Enfermedades de las Ovejas / Enfermedades de los Bovinos / Enfermedades de las Cabras / Coxiella burnetii / Aborto Veterinario Tipo de estudio: Prognostic_studies / Risk_factors_studies / Screening_studies Límite: Animals Idioma: En Revista: Infect Genet Evol Asunto de la revista: BIOLOGIA / DOENCAS TRANSMISSIVEIS / GENETICA Año: 2017 Tipo del documento: Article País de afiliación: Francia Pais de publicación: Países Bajos