title: [Epidemiology of caprine brucellosis in the Central Zone of the State of Veracruz].
abstract: BACKGROUND
  Brucellosis is a disease of high morbidity that affects several animal species, is transmitted to humans and, therefore, is a zoonosis. It is caused by bacteria of the genus Brucella. In this study we aim to determine seroprevalence, risk factors, and spatial distribution of caprine brucellosis in 14 municipalities in the central region of the state of Veracruz.
  
  
  METHODS
  This cross-stratified multistage study was conducted between 2009 and 2012. It included 572 animals of 81 production units selected by consensus according to the value tables of ​​Cannon and Roe. The diagnosis was by Card Testing and Radial Immunodiffusion. The seroprevalence was determined with the VassarStats® risk factor program and odds.
  
  
  RESULTS
  The overall seroprevalence was 0.52% (95% CI: 0.13-1.65) and production units 2.47% (95% CI: 0.43-9.46). They were identified as risk factor for infection, production units in feedlot system and Card Testing seroconversion to vaccine against brucellosis; and as a protective factor, vaccination.
  
  
  CONCLUSIONS
  Seroprevalence and distribution of goat brucellosis is low, the intensive system is a risk, and according with the Health Ministry in order that human cases are scarce.
authors.affiliation: Facultad de Medicina Veterinaria y Zootecnia, Universidad Veracruzana, Veracruz, Ver., México.
authors.forename: Daniela Lucía
authors.initials: DL
authors.lastname: Román-Ramírez
authors.affiliation: Facultad de Medicina Veterinaria y Zootecnia, Universidad Veracruzana, Veracruz, Ver., México.
authors.forename: David Itzcoatl
authors.initials: DI
authors.lastname: Martínez-Herrera
authors.affiliation: Facultad de Medicina Veterinaria y Zootecnia, Universidad Veracruzana, Veracruz, Ver., México.
authors.forename: José Alfredo
authors.initials: JA
authors.lastname: Villagómez-Cortés
authors.affiliation: Facultad de Medicina Veterinaria y Zootecnia, Universidad Veracruzana, Veracruz, Ver., México.
authors.forename: Álvaro Enrique de Jesús
authors.initials: ÁE
authors.lastname: Peniche-Cardeña
authors.affiliation: Facultad de Medicina Veterinaria y Zootecnia, Universidad Veracruzana, Veracruz, Ver., México.
authors.forename: José Francisco
authors.initials: JF
authors.lastname: Morales-Álvarez
authors.affiliation: Centro Nacional de Investigación Disciplinaria en Microbiología Animal (CENID) Microbiología Animal, INIFAP, Ciudad de México, México.
authors.forename: Ricardo
authors.initials: R
authors.lastname: Flores-Castro
mesh_terms: D000818:Animals; D002006:Brucellosis / Q000097:blood / Q000453:epidemiology / Q000662:veterinary*; D003430:Cross-Sectional Studies; D005260:Female; D015511:Goat Diseases / Q000097:blood / Q000453:epidemiology* / Q000382:microbiology*; D006041:Goats; D008297:Male; D008800:Mexico / Q000453:epidemiology; D016036:Seroepidemiologic Studies