Population Structure, Antimicrobial Resistance, and Virulence-Associated Genes in Campylobacter jejuni Isolated From Three Ecological Niches: Gastroenteritis Patients, Broilers, and Wild Birds
Visualitza/Obre
Autor/a
Iglesias-Torrens, Yaidelys
Miró, Elisenda
Guirado, Pedro
Llovet, Teresa
Muñoz, Carmen
Madrid, Cristina
Balsalobre, Carlos
Navarro, Ferran
Data de publicació
2018-08-02ISSN
1664-302X
Resum
Campylobacter jejuni is the causal agent of the food-borne infection with the highest incidence in Europe. Both poultry and wild birds are a major reservoir. To gain insight into the population structure, virulence potential, and antimicrobial resistance (AMR), a collection of 150 isolates from three different ecological niches (broilers, wild birds, and human patients) was studied. Despite the high genetic diversity found, the population structure defined two distinct clusters, one formed mostly by broiler and human isolates and another one by most wild bird isolates. The ST-21 complex exhibits highest prevalence (in humans and broilers), followed by ST-1275 complex (only in wild birds). The ST-48, -45, and -354 complexes were found in all three niches, but represent only 22 out of 150 studied strains. A higher occurrence of AMR and multidrug resistance was detected among broiler and human isolates. Moreover, significant differences were found in the distribution of certain putative virulence genes. Remarkably, many wild bird strains were negative for either cdtA, cdtB, or cdtC from the canonical strain 81-176, whereas all broiler and human strains were positive. These data suggest that the different variants of the cdt genes might be relevant for the efficient colonization of certain hosts by C. jejuni. Our study contributes to the understanding of the role of the diverse Campylobacter reservoirs in the transmission of campylobacteriosis to humans
Tipus de document
Article
Versió del document
Versió publicada
Llengua
English
Matèries (CDU)
619 - Veterinària
Pàgines
13
Publicat per
Frontiers Media
Publicat a
Frontiers in Microbiology
Citació
Iglesias-Torrens, Yaidelys, Elisenda Miró, Pedro Guirado, Teresa Llovet, Carmen Muñoz, Marta Cerdà-Cuéllar, Cristina Madrid, Carlos Balsalobre, and Ferran Navarro. 2018. "Population Structure, Antimicrobial Resistance, And Virulence-Associated Genes In Campylobacter Jejuni Isolated From Three Ecological Niches: Gastroenteritis Patients, Broilers, And Wild Birds". Frontiers In Microbiology 9. Frontiers Media SA. doi:10.3389/fmicb.2018.01676.
Número de l'acord de la subvenció
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INIA/ /FAU2008-00012-C02-01/ES/Epidemiología de Salmonella y Campylobacter en granjas avícolas de cría al aire libre en relación con la proximidad de colonias de gaviotas/
INIA/Programa Nacional de Proyectos de Investigación Fundamental/RTA2009-00117-00-00/ES/Epidemiología de Campylobacter en granjas de pollos de engorde en España: prevalencia, subtipos existentes, factores de riesgo y dinámica de la infección en granjas/
EC/FP7/244547/EU/Campylobacter control - novel approaches in primary poultry production/CAMCON
Programa
Sanitat Animal
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