English   español  
Please use this identifier to cite or link to this item: http://hdl.handle.net/10261/174649
Share/Impact:
Statistics
logo share SHARE logo core CORE   Add this article to your Mendeley library MendeleyBASE

Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL | DATACITE
Exportar a otros formatos:

Title

Epidemiological surveillance of Mycobacterium tuberculosis complex in extensively raised pigs in the south of Spain

AuthorsCano-Terriza, David; Risalde, María Ángeles; Rodríguez-Hernández, Pablo; Napp, Sebastián; Fernández-Morente, Manuel; Moreno, Inmaculada; Bezos, Javier; Fernández-Molera, Vicente; Sáez, José L.; García-Bocanegra, Ignacio
KeywordsTuberculosis
Spatial analysis
Spoligotypes
Risk factors
Reservoir
Iberian pigs
Issue Date2018
PublisherElsevier
CitationPreventive Veterinary Medicine 159: 87-91 (2018)
AbstractThe role of domestic pigs in the epidemiology of Mycobacterium tuberculosis complex (MTC) is considered to be limited due to the characteristics of intensive production systems. However, in southwestern Spain, Iberian pigs are usually raised under extensive management systems, sharing their habitat with other domestic and wild species, some of which may act as reservoirs of MTC. Our objective was to determine the seroprevalence, risk factors, spatial distribution and spoligotypes of MTC circulating in extensively farmed pigs in Andalusia (southern Spain), a region with a high prevalence of tuberculosis in both cattle and wild boar populations. Serum samples from 3622 extensively-raised Iberian pigs from 129 randomly selected farms were tested for antibodies against MTC using an indirect (P22) ELISA. Antibodies to MTC were detected in 82 pigs (2.3%; 95%CI: 1.8–2.8%). Seropositivity was significantly higher in sows (3.7%) than in fattening pigs (1.7%) (P = 0.0001). Herd prevalence was 24.8% (95%CI: 17.4–32.3%). Two risk factors were associated with MTC seropositivity on farms: herd size (higher seroprevalence on larger farms) (OR=1.001; 95%CI: 1.000–1.002), and the presence of neighboring goat flocks (OR = 7.345; 95%CI: 1.464–36.848). Two statistically significant spatial clusters (P < 0.001) were identified in the north-west of Andalusia. A total of 25 different MTC spoligotypes were isolated in pigs bred extensively in the study area. Based on the serological and molecular results obtained in the current study, it is possible that extensively raised Iberian pigs may act as an MTC reservoir in Mediterranean ecosystems. The high herd prevalence, as well as the identification of significant spatial clusters, indicates widespread, but not homogenous MTC circulation among extensively-managed pig farms. Risk-based surveillance and control programs should be implemented on this type of farms in Spain.
URIhttp://hdl.handle.net/10261/174649
DOI10.1016/j.prevetmed.2018.08.015
Identifiersdoi: 10.1016/j.prevetmed.2018.08.015
issn: 0167-5877
e-issn: 1873-1716
Appears in Collections:(IREC) Artículos
Files in This Item:
File Description SizeFormat 
accesoRestringido.pdf15,38 kBAdobe PDFThumbnail
View/Open
Show full item record
Review this work
 

Related articles:


WARNING: Items in Digital.CSIC are protected by copyright, with all rights reserved, unless otherwise indicated.