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Background: Bovine brucellosis (BB) is a zoonotic disease caused by Brucella abortus. BB is endemic in Argentina, where vaccination with Brucella abortus strain 19 is compulsory for 3-to-8 month-old heifers. The objectives of this study were to quantify the prevalence of BB and to identify factors associated with its occurrence, along with the spatial distribution of the disease, in the provinces of La Pampa and San Luis. A two-stage random sampling [ver mas...]
dc.contributor.authorAznar, Maria Natalia
dc.contributor.authorLinares, Facundo José
dc.contributor.authorCosentino, Bernardo
dc.contributor.authorSago, Adrián Miguel
dc.contributor.authorLa Sala, Luciano Francisco
dc.contributor.authorLeon, Eduardo
dc.contributor.authorDuffy, Sergio
dc.contributor.authorPerez, Andrés
dc.coverage.spatialSan Luis (province)
dc.coverage.spatialArgentina (nation)
dc.date.accessioned2019-02-20T15:14:28Z
dc.date.available2019-02-20T15:14:28Z
dc.date.issued2015
dc.identifier.issn1746-6148
dc.identifier.otherhttps://doi.org/10.1186/s12917-015-0535-1
dc.identifier.urihttp://hdl.handle.net/20.500.12123/4475
dc.identifier.urihttps://bmcvetres.biomedcentral.com/articles/10.1186/s12917-015-0535-1
dc.description.abstractBackground: Bovine brucellosis (BB) is a zoonotic disease caused by Brucella abortus. BB is endemic in Argentina, where vaccination with Brucella abortus strain 19 is compulsory for 3-to-8 month-old heifers. The objectives of this study were to quantify the prevalence of BB and to identify factors associated with its occurrence, along with the spatial distribution of the disease, in the provinces of La Pampa and San Luis. A two-stage random sampling design was used to sample 8,965 cows (3,513 in La Pampa and 5,452 in San Luis) from 451 farms (187 in La Pampa and 264 in San Luis). Results: Cow and herd prevalence were 1.8 % (95 % CI: 1.3–2.2; n = 157) and 19.7 % (95 % CI: 17.0–22.4; n = 89), respectively. Both cow-level and herd-level prevalence in La Pampa (2.4 and 26.0 %, respectively) were significantly higher than in San Luis (1.4 and 15.5 %, respectively). There were not differences between the proportions of reactive cattle compared to that obtained in a survey conducted in 2005. However, herd prevalence in La Pampa was significantly (P < 0.05) higher compared to that study. Disease was found to be spatially clustered in west La Pampa. The lower the bovine density and the calf/cow ratio, the higher odds of belonging to the cluster. Conclusions: The increase of farm prevalence in the last five years suggests that the disease is spreading and that control measures should be applied in the region. The cluster of infected farms was located in the west region of La Pampa. There, farms have lower animal densities and smaller cow/calf indices compared to the rest of the province. Although western La Pampa has more infected herds, within-farm prevalence was not higher, which suggests that the control program has been relatively successful in controlling the disease at the farm level, and/or that low animal density inherently results in low disease prevalence. Our results provide baseline information on the epidemiology of BB and its potential pattern of transmission in Argentina, which will ultimately help to improve BB control programs in the country.eng
dc.formatapplication/pdfeng
dc.language.isoeng
dc.publisherBioMed Centraleng
dc.rightsinfo:eu-repo/semantics/openAccesseng
dc.sourceBMC veterinary research 11 : 209. (2015)eng
dc.subjectMorbosidades_AR
dc.subjectMorbidityeng
dc.subjectDistribución Espaciales_AR
dc.subjectSpatial Distributioneng
dc.subjectBrucella Abortuses_AR
dc.subject.otherPrevalenceeng
dc.subject.otherPrevalencia de una Enfermedadeng
dc.subject.otherBovine Brucellosiseng
dc.subject.otherBrucelosis Bovinaes_AR
dc.subject.otherSan Luises_AR
dc.subject.otherLa Pampaes_AR
dc.titlePrevalence and spatial distribution of bovine brucellosis in San Luis and La Pampa, Argentinaeng
dc.typeinfo:ar-repo/semantics/artículoes_AR
dc.typeinfo:eu-repo/semantics/articleeng
dc.typeinfo:eu-repo/semantics/publishedVersioneng
dc.description.origenInstituto de Patobiologíaes_AR
dc.description.filFil: Aznar, Maria Natalia. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Patobiología. Area de Patología, Epidemiología y Medicina Preventiva; Argentina. University of Liege. Faculty of Veterinary Medicine. Department of Infectious and Parasitic Diseases. Research Unit of Epidemiology and Risk Analysis Applied to Veterinary Sciences; Belgicaes_AR
dc.description.filFil: Linares, Facundo José. Servicio Nacional de Sanidad y Calidad Agroalimentaria. Dirección Nacional de Sanidad Animal. Dirección de Epidemiología y Análisis de Riesgo; Argentinaes_AR
dc.description.filFil: Cosentino, Bernardo. Servicio Nacional de Sanidad y Calidad Agroalimentaria. Dirección Nacional de Sanidad Animal. Dirección de Epidemiología y Análisis de Riesgo; Argentinaes_AR
dc.description.filFil: Sago, Adrián Miguel. Servicio Nacional de Sanidad y Calidad Agroalimentaria. Centro Regional La Pampa-San Luis; Argentinaes_AR
dc.description.filFil: La Sala, Luciano Francisco. Universidad Nacional del Sur. Bioquímica y Farmacia. Cátedra de Parasitología Cínica. Departamento de Biología; Argentinaes_AR
dc.description.filFil: Leon, Eduardo. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Patobiología. Area de Patología, Epidemiología y Medicina Preventiva; Argentinaes_AR
dc.description.filFil: Duffy, Sergio. Universidad Nacional de Rosario. Facultad de Ciencias Veterinarias. Centro de Estudios Cuantitativos en Sanidad Animal; Argentinaes_AR
dc.description.filFil: Perez, Andrés. University of Minnesota. College of Veterinary Medicine. Department of Veterinary Population Medicine; Estados Unidoses_AR
dc.subtypecientifico


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