Effect of cattle on Salmonella carriage, diversity and antimicrobial resistance in free-ranging wild boar (Sus scrofa) in northeastern Spain

Navarro González, Nora; Mentaberre García, Gregorio; Porrero, Concepción M.; Serrano Ferrón, Emmanuel; Mateos, Ana; López Martín, José María; Lavín González, Santiago; Domínguez Rodríguez, Lucas

doi:https://doi.org/10.1371/journal.pone.0051614

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2012

Author

Navarro González, Nora

Mentaberre García, Gregorio

Porrero, Concepción M.

Serrano Ferrón, Emmanuel

Mateos, Ana

López Martín, José María

Lavín González, Santiago

Domínguez Rodríguez, Lucas

Suggested citation

Navarro González, Nora; Mentaberre García, Gregorio; Porrero, Concepción M.; Serrano Ferrón, Emmanuel; Mateos, Ana; López Martín, José María; ... Domínguez Rodríguez, Lucas. (2012) . Effect of cattle on Salmonella carriage, diversity and antimicrobial resistance in free-ranging wild boar (Sus scrofa) in northeastern Spain. PLoS ONE, 2012, vol. 7, núm. 12, e51614. https://doi.org/10.1371/journal.pone.0051614.

Abstract

Salmonella is distributed worldwide and is a pathogen of economic and public health importance. As a multi-host pathogen with a long environmental persistence, it is a suitable model for the study of wildlife-livestock interactions. In this work, we aim to explore the spill-over of Salmonella between free-ranging wild boar and livestock in a protected natural area in NE Spain and the presence of antimicrobial resistance. Salmonella prevalence, serotypes and diversity were compared between wild boars, sympatric cattle and wild boars from cattle-free areas. The effect of age, sex, cattle presence and cattle herd size on Salmonella probability of infection in wild boars was explored by means of Generalized Linear Models and a model selection based on the Akaike’s Information Criterion. Prevalence was higher in wild boars co-habiting with cattle (35.67%, CI 95% 28.19–43.70) than in wild boar from cattle-free areas (17.54%, CI 95% 8.74–29.91). Probability of a wild boar being a Salmonella carrier increased with cattle herd size but decreased with the host age. Serotypes Meleagridis, Anatum and Othmarschen were isolated concurrently from cattle and sympatric wild boars. Apart from serotypes shared with cattle, wild boars appear to have their own serotypes, which are also found in wild boars from cattle-free areas (Enteritidis, Mikawasima, 4:b:- and 35:r:z35). Serotype richness (diversity) was higher in wild boars co-habiting with cattle, but evenness was not altered by the introduction of serotypes from cattle. The finding of a S. Mbandaka strain resistant to sulfamethoxazole, streptomycin and chloramphenicol and a S. Enteritidis strain resistant to ciprofloxacin and nalidixic acid in wild boars is cause for public health concern.

URI

http://hdl.handle.net/10459.1/46420

DOI

https://doi.org/10.1371/journal.pone.0051614

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PLoS ONE, 2012, vol. 7, núm. 12, e51614

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Except where otherwise noted, this item's license is described as cc-by, (c) Navarro-González et al., 2012