Progress in the control of bovine tuberculosis in Spanish wildlife

Gortázar, Christian; Vicente, Joaquín; Boadella, Mariana; Ballesteros, Cristina; Galindo, Ruth C.; Garrido, Joseba M.; Aranaz, Alicia; Fuente, José de la

doi:10.1016/j.vetmic.2011.02.041

Cited by 97 publications

(103 citation statements)

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“…Both cattle and wildlife display high TB prevalence in south-central Spain, and levels in wild boar and red deer have increased over the last 12 years (Vicente et al 2013). It is thought that the presence of these wildlife reservoirs is contributing to the failure to eradicate TB in the cattle population despite a long-standing test-and-slaughter scheme (Diez et al 2002;Naranjo et al 2008;Gortazar et al 2011).…”

Section: Introductionmentioning

confidence: 99%

Interactions between four species in a complex wildlife: livestock disease community: implications for Mycobacterium bovis maintenance and transmission

et al. 2015

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Livestock diseases such as bovine tuberculosis can have considerable negative effects on human health and economic activity. Wildlife reservoirs often hinder disease eradication in sympatric livestock populations. Therefore, quantifying interactions between wildlife and livestock is an important aspect of understanding disease persistence. This study was conducted on an extensive cattle farm in southwest Spain, where cattle, domestic pigs, wild boar and red deer are considered to be part of a tuberculosis host community. We tested the hypothesis that the frequency of both types of interactions would be greater at food and water sites, due to the aggregation of individuals from multiple species at these locations. We measured direct and indirect interactions between individuals using GPS and proximity loggers. Over 57,000 direct interactions were recorded over a 2-year period, of which 875 (1.5 %) occurred between different species and 216 (0.38 %) occurred between wildlife and livestock. Most direct and indirect interactions occurred at water sites. Over 90 % of indirect interactions between wildlife and livestock took place within the estimated 3-day environmental survival time of Mycobacterium bovis in this habitat. Red deer home ranges and daily activity patterns revealed significant spatial and temporal overlaps with cattle, particularly in autumn. Suids and red deer also cross the farm boundary regularly, introducing a between-farm interaction risk. The infrequent occurrence of direct interactions between individuals from different species suggests that they are unlikely to be the sole mode of disease transmission and that indirect interactions may play an important role.

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Section: Introductionmentioning

confidence: 99%

Interactions between four species in a complex wildlife: livestock disease community: implications for Mycobacterium bovis maintenance and transmission

et al. 2015

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“…In Doñana, bTB was not detected in targeted wildlife health surveillance until 1990's, when the population of cattle greatly increased, while in 2000's high prevalence rates were found in all ungulate species . In fact, prevalence rates in this area increased from 1998-2003 to 2006-2007 by 100% in wild boar and 50% in red deer (Gortázar et al, 2011b). In Extremadura region, West-central Spain, prevalence rates detected in routine meat inspection schemes steadily raised from 1994, while not detected in 1992-1993(de Mendonza et al, 2006.…”

Section: Trendsmentioning

confidence: 99%

“…The few published data about the temporal dynamics of bTB prevalence rates are unanimous in showing an increasing trend across Iberian Peninsula in both wild boar and red deer (de Mendonza et al, 2006;Gortázar et al, 2008Gortázar et al, , 2011bSantos et al, 2009, unpublished data). Gortázar et al, (2011b) recently reported that 11/14 wild ungulate populations from central Spain show increasing bTB prevalence rates as assessed by gross pathology.…”

Section: Trendsmentioning

confidence: 99%

“…In the Iberian Peninsula, ungulates such as the wild boar Sus scrofa and the red deer Cervus elaphus have been recognized as the most important maintenance hosts for wildlife tuberculosis (Gortázar et al, 2011b). Nevertheless other species have also been identified as locally non-negligible hosts, such as the fallow deer Dama dama and the badger Meles meles (Gortázar et al, 2011b;Balseiro et al, 2011).…”

Section: Introductionmentioning

confidence: 99%

“…Nevertheless other species have also been identified as locally non-negligible hosts, such as the fallow deer Dama dama and the badger Meles meles (Gortázar et al, 2011b;Balseiro et al, 2011). Several other species of ungulates and carnivores were also found infected (Rodriguez et al, 2010).…”

Section: Introductionmentioning

confidence: 99%

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