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Factors driving the abundance of ixodes ricinus ticks and the prevalence of zoonotic I. ricinus-borne pathogens in natural foci

Artículo de investigación publicado en Applied and Environmental Microbiology

1 de abril de 2012

Environmental factors may drive tick ecology and therefore tick-borne pathogen (TBP) epidemiology, which determines the risk to animals and humans of becoming infected by TBPs. For this reason, the aim of this study was to analyze the influence of environmental factors on the abundance of immature-stage Ixodes ricinus ticks and on the prevalence of two zoonotic I. ricinus-borne pathogens in natural foci of endemicity. I. ricinus abundance was measured at nine sites in the northern Iberian Peninsula by dragging the vegetation with a cotton flannelette, and ungulate abundance was measured by means of dung counts. In addition to ungulate abundance, data on variables related to spatial location, climate, and soil were gathered from the study sites. I. ricinus adults, nymphs, and larvae were collected from the vegetation, and a representative subsample of I. ricinus nymphs from each study site was analyzed by PCR for the detection of Borrelia burgdorferi sensu lato and Anaplasma phagocytophilum DNA. Mean prevalences of these pathogens were 4.0% ± 1.8% and 20.5% ± 3.7%, respectively. Statistical analyses confirmed the influence of spatial factors, climate, and ungulate abundance on I. ricinus larva abundance, while nymph abundance was related only to climate. Interestingly, cattle abundance rather than deer abundance was the main driver of B. burgdorferi sensu lato and A. phagocytophilum prevalence in I. ricinus nymphs in the study sites, where both domestic and wild ungulates coexist. The increasing abundance of cattle seems to increase the risk of other hosts becoming infected by A. phagocytophilum, while reducing the risk of being infected by B. burgdorferi sensu lato. Controlling ticks in cattle in areas where they coexist with wild ungulates would be more effective for TBP control than reducing ungulate abundance.




Ruiz-Fons F., Fernandez de Mera IG., Acevedo P., Gortazar C. y de la Fuente J.




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Factors driving the abundance of ixodes ricinus ticks and the prevalence of zoonotic I. ricinus-borne pathogens in natural foci

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Factors driving the abundance of ixodes ricinus ticks and the prevalence of zoonotic I. ricinus-borne pathogens in natural foci


Participantes:

Universidad ComplutenseServicio de Micobacterias (MYC). Centro de Vigilancia Sanitaria Veterinaria (VISAVET). Universidad Complutense (UCM).

Universidad ComplutenseDepartamento de Sanidad Animal. Facultad de Veterinaria. Universidad Complutense (UCM).

Gobierno de Castilla-La ManchaSanidad y Biotecnología (SaBio). Instituto de Investigación en Recursos Cinegéticos (IREC). Consejo Superior de Investigaciones Científicas (CSIC). Universidad de Castilla La Mancha (UCLM). Gobierno de Castilla-La Mancha (JCCM).

Gobierno VascoNeiker-Tecnalia, Instituto Vasco de Investigación y Desarrollo Agrario. Gobierno Vasco.

Universidad de MálagaDepartamento de Biología Animal. Facultad de Ciencias. Universidad de Málaga (UMA).

Oklahoma State UniversityDepartament of Veterinary Pathobiology. Center for Veterinary Health Sciences (CVHS). Oklahoma State University (OSU).

Universidade do PortoCentro de Investigação em Biodiversidade e Recursos Genétivos (CIBIO). Universidade do Porto (UP).







Applied and Environmental Microbiology
FACTOR YEAR Q
3.678 2012

NLMID: 7605801

PMID: 22286986

ISSN: 0099-2240



TÍTULO: Factors driving the abundance of ixodes ricinus ticks and the prevalence of zoonotic I. ricinus-borne pathogens in natural foci


REVISTA: Appl. Environ. Microbiol.


NUMERACIÓN: 78(8):2669-76


AÑO: 2012


EDITORIAL: American Society for Microbiology


AUTORES: Ruiz-Fons F., Fernandez de Mera IG., Acevedo P., Gortazar C. and de la Fuente J.


DOI: https://doi.org/10.1128/AEM.06564-11


CITA ESTA PUBLICACIÓN:

Ruiz-Fons F., Fernandez de Mera IG., Acevedo P., Gortazar C. y de la Fuente J. Factors driving the abundance of ixodes ricinus ticks and the prevalence of zoonotic I. ricinus-borne pathogens in natural foci. Applied and Environmental Microbiology. 78(8):2669-76. 2012. (A). ISSN: 0099-2240. DOI: 10.1128/AEM.06564-11


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