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Open AccessArticle

Tuberculosis Epidemiology and Badger (Meles meles) Spatial Ecology in a Hot-Spot Area in Atlantic Spain

1
Instituto de Investigación en Recursos Cinegéticos (IREC) UCLM-CSIC-JCCM, 13071 Ciudad Real, Spain
2
Servicio Regional de Investigación y Desarrollo Agroalimentario (SERIDA), Centro de Biotecnología Animal, 33394 Deva-Gijón, Asturias, Spain
3
Consejería de Infraestructuras, Ordenación del Territorio y Medio Ambiente, 33005 Oviedo, Asturias, Spain
4
Laboratorio Regional de Sanidad Animal del Principado de Asturias, 33201 Gijón, Asturias, Spain
5
Centro de Vigilancia Sanitaria Veterinaria (VISAVET) y Departamento de Sanidad Animal. Universidad Complutense de Madrid, 28040 Madrid, Spain
6
Unidad de Inmunología Microbiana, Centro Nacional de Microbiología, Instituto de Salud Carlos III, 28029 Madrid, Spain
7
Departamento de Sanidad Animal, Universidad de León, 24071 León, Spain
*
Author to whom correspondence should be addressed.
Pathogens 2019, 8(4), 292; https://doi.org/10.3390/pathogens8040292
Received: 10 October 2019 / Revised: 5 December 2019 / Accepted: 9 December 2019 / Published: 10 December 2019
(This article belongs to the Special Issue Tuberculosis Epidemiology and Control in Multi-Host Systems)
We provide a temporal overview (from 2012 to 2018) of the outcomes of tuberculosis (TB) in the cattle and badger populations in a hot-spot in Asturias (Atlantic Spain). We also study the badger’s spatial ecology from an epidemiological perspective in order to describe hazardous behavior in relation to TB transmission between cattle and badgers. Culture and single intradermal tuberculin test (SITT) were available for cattle as part of the National Program for the Eradication of TB. A field survey was also carried out in order to determine the paddocks and buildings used by each farm, and the information obtained was stored by using geographic information systems. Moreover, eighty-three badgers were submitted for necropsy and subsequent bacteriological studies. Ten badgers were also tracked, using global positioning system (GPS) collars. The prevalence of TB in cattle herds in the hot-spot increased from 2.2% in 2012 to 20% in 2016; it then declined to 0.0% in 2018. In contrast, the TB prevalence in badgers increased notably (from 5.55% in 2012–2015 to 10.64% in 2016–2018). Both cattle and badgers shared the same strain of Mycobacterium bovis. The collared badgers preferred paddocks used by TB-positive herds in spring and summer (when they were more active). The males occupied larger home ranges than the females (Khr95: males 149.78 ± 25.84 ha and females 73.37 ± 22.91 ha; Kcr50: males 29.83 ± 5.69 ha and females 13.59 ± 5.00 ha), and the home ranges were smaller in autumn and winter than in summer. The averages of the index of daily and maximum distances traveled by badgers were 1.88 ± (SD) 1.20 km and 1.99 ± 0.71 km, respectively. One of them presented a dispersive behavior with a maximum range of 18.3 km. The most preferred habitat was apple orchards in all seasons, with the exception of winter, in which they preferred pastures. Land uses and landscape structure, which have been linked with certain livestock-management practices, provide a scenario of great potential for badger–cattle interactions, thus enhancing the importance of the badgers’ ecology, which could potentially transmit TB back to cattle in the future. View Full-Text
Keywords: badger; Meles meles; cattle; tuberculosis; epidemiology; ecology; multi-host system badger; Meles meles; cattle; tuberculosis; epidemiology; ecology; multi-host system
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Acevedo, P.; Prieto, M.; Quirós, P.; Merediz, I.; de Juan, L.; Infantes-Lorenzo, J.A.; Triguero-Ocaña, R.; Balseiro, A. Tuberculosis Epidemiology and Badger (Meles meles) Spatial Ecology in a Hot-Spot Area in Atlantic Spain. Pathogens 2019, 8, 292.

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