Epidemiological Investigation of Bovine Tuberculosis Herd Breakdowns in Spain 2009/2011

We analyzed the most likely cause of 687 bovine tuberculosis (bTB) breakdowns detected in Spain between 2009 and 2011 (i.e., 22% of the total number of breakdowns detected during this period). Seven possible causes were considered: i) residual infection; ii) introduction of infected cattle from othe...

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Autores: Guta, Sintayehu, Casal, Jordi, Napp, Sebastian, Saez, Jose Luis, Garcia-Saenz, Ariadna, PÉREZ DE VAL, BERNAT, Romero, Beatriz, Alvarez, Julio, Allepuz, Alberto
Tipo de recurso: artículo
Fecha de publicación:2014
País:España
Institución:Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
Repositorio:Recercat. Dipósit de la Recerca de Catalunya
OAI Identifier:oai:recercat.cat:20.500.12327/3242
Acceso en línea:http://hdl.handle.net/20.500.12327/3242
https://doi.org/10.1371/journal.pone.0104383
Access Level:acceso abierto
Palabra clave:619
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spelling Epidemiological Investigation of Bovine Tuberculosis Herd Breakdowns in Spain 2009/2011Guta, SintayehuCasal, JordiNapp, SebastianSaez, Jose LuisGarcia-Saenz, AriadnaPÉREZ DE VAL, BERNATRomero, BeatrizAlvarez, JulioAllepuz, Alberto619We analyzed the most likely cause of 687 bovine tuberculosis (bTB) breakdowns detected in Spain between 2009 and 2011 (i.e., 22% of the total number of breakdowns detected during this period). Seven possible causes were considered: i) residual infection; ii) introduction of infected cattle from other herds; iii) sharing of pastures with infected herds; iv) contiguous spread from infected neighbor herds; v) presence of infected goats in the farm; vi) interaction with wildlife reservoirs and vii) contact with an infected human. For each possible cause a decision tree was developed and key questions were Included in each of them. Answers to these key questions lead to different events within each decision tree. In order to assess the likelihood of occurrence of the different events a qualitative risk assessment approach was used. For this purpose, an expert opinion workshop was organized and ordinal values, ranging from 0 to 9 (i.e., null to very high likelihood of occurrence) were assigned. The analysis identified residual infection as the most frequent cause of bTB breakdowns (22.3%; 95%CI: 19.4–25.6), followed by interaction with wildlife reservoirs (13.1%; 95%CI: 10.8–15.8). The introduction of infected cattle, sharing of pastures and contiguous spread from infected neighbour herds were also identified as relevant causes. In 41.6% (95%CI:38.0–45.4) of the breakdowns the origin of infection remained unknown. Veterinary officers conducting bTB breakdown investigations have to state their opinion about the possible cause of each breakdown. Comparison between the results of our analysis and the opinion from veterinary officers revealed a slight concordance. This slight agreement might reflect a lack of harmonized criteria to assess the most likely cause of bTB breakdowns as well as different perceptions about the importance of the possible causes. This is especially relevant in the case of the role of wildlife reservoirs.info:eu-repo/semantics/publishedVersionPublic Library of ScienceProducció AnimalSanitat Animal2014info:eu-repo/semantics/article12http://hdl.handle.net/20.500.12327/3242https://doi.org/10.1371/journal.pone.0104383reponame:Recercat. Dipósit de la Recerca de Catalunyainstname:Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)InglésPLoS ONEMICINN/Programa Nacional de Proyectos de Investigación Fundamental/AGL2010-21098/ES/EPIDEMIOLOGIA ESPACIAL DE LA TUBERCULOSIS BOVINA EN ANIMALES DOMESTICOS EN ESPAÑA: ESTUDIO DE LA PERSISTENCIA Y DE NUEVAS INFECCIONES. EVALUACION DE LA VIGILANCIA/Attribution 4.0 Internationalhttp://creativecommons.org/licenses/by/4.0/info:eu-repo/semantics/openAccessoai:recercat.cat:20.500.12327/32422026-05-29T05:05:01Z
dc.title.none.fl_str_mv Epidemiological Investigation of Bovine Tuberculosis Herd Breakdowns in Spain 2009/2011
title Epidemiological Investigation of Bovine Tuberculosis Herd Breakdowns in Spain 2009/2011
spellingShingle Epidemiological Investigation of Bovine Tuberculosis Herd Breakdowns in Spain 2009/2011
Guta, Sintayehu
619
title_short Epidemiological Investigation of Bovine Tuberculosis Herd Breakdowns in Spain 2009/2011
title_full Epidemiological Investigation of Bovine Tuberculosis Herd Breakdowns in Spain 2009/2011
title_fullStr Epidemiological Investigation of Bovine Tuberculosis Herd Breakdowns in Spain 2009/2011
title_full_unstemmed Epidemiological Investigation of Bovine Tuberculosis Herd Breakdowns in Spain 2009/2011
title_sort Epidemiological Investigation of Bovine Tuberculosis Herd Breakdowns in Spain 2009/2011
dc.creator.none.fl_str_mv Guta, Sintayehu
Casal, Jordi
Napp, Sebastian
Saez, Jose Luis
Garcia-Saenz, Ariadna
PÉREZ DE VAL, BERNAT
Romero, Beatriz
Alvarez, Julio
Allepuz, Alberto
author Guta, Sintayehu
author_facet Guta, Sintayehu
Casal, Jordi
Napp, Sebastian
Saez, Jose Luis
Garcia-Saenz, Ariadna
PÉREZ DE VAL, BERNAT
Romero, Beatriz
Alvarez, Julio
Allepuz, Alberto
author_role author
author2 Casal, Jordi
Napp, Sebastian
Saez, Jose Luis
Garcia-Saenz, Ariadna
PÉREZ DE VAL, BERNAT
Romero, Beatriz
Alvarez, Julio
Allepuz, Alberto
author2_role author
author
author
author
author
author
author
author
dc.contributor.none.fl_str_mv Producció Animal
Sanitat Animal
dc.subject.none.fl_str_mv 619
topic 619
description We analyzed the most likely cause of 687 bovine tuberculosis (bTB) breakdowns detected in Spain between 2009 and 2011 (i.e., 22% of the total number of breakdowns detected during this period). Seven possible causes were considered: i) residual infection; ii) introduction of infected cattle from other herds; iii) sharing of pastures with infected herds; iv) contiguous spread from infected neighbor herds; v) presence of infected goats in the farm; vi) interaction with wildlife reservoirs and vii) contact with an infected human. For each possible cause a decision tree was developed and key questions were Included in each of them. Answers to these key questions lead to different events within each decision tree. In order to assess the likelihood of occurrence of the different events a qualitative risk assessment approach was used. For this purpose, an expert opinion workshop was organized and ordinal values, ranging from 0 to 9 (i.e., null to very high likelihood of occurrence) were assigned. The analysis identified residual infection as the most frequent cause of bTB breakdowns (22.3%; 95%CI: 19.4–25.6), followed by interaction with wildlife reservoirs (13.1%; 95%CI: 10.8–15.8). The introduction of infected cattle, sharing of pastures and contiguous spread from infected neighbour herds were also identified as relevant causes. In 41.6% (95%CI:38.0–45.4) of the breakdowns the origin of infection remained unknown. Veterinary officers conducting bTB breakdown investigations have to state their opinion about the possible cause of each breakdown. Comparison between the results of our analysis and the opinion from veterinary officers revealed a slight concordance. This slight agreement might reflect a lack of harmonized criteria to assess the most likely cause of bTB breakdowns as well as different perceptions about the importance of the possible causes. This is especially relevant in the case of the role of wildlife reservoirs.
publishDate 2014
dc.date.none.fl_str_mv 2014
dc.type.none.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv http://hdl.handle.net/20.500.12327/3242
https://doi.org/10.1371/journal.pone.0104383
url http://hdl.handle.net/20.500.12327/3242
https://doi.org/10.1371/journal.pone.0104383
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv PLoS ONE
MICINN/Programa Nacional de Proyectos de Investigación Fundamental/AGL2010-21098/ES/EPIDEMIOLOGIA ESPACIAL DE LA TUBERCULOSIS BOVINA EN ANIMALES DOMESTICOS EN ESPAÑA: ESTUDIO DE LA PERSISTENCIA Y DE NUEVAS INFECCIONES. EVALUACION DE LA VIGILANCIA/
dc.rights.none.fl_str_mv Attribution 4.0 International
http://creativecommons.org/licenses/by/4.0/
info:eu-repo/semantics/openAccess
rights_invalid_str_mv Attribution 4.0 International
http://creativecommons.org/licenses/by/4.0/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 12
dc.publisher.none.fl_str_mv Public Library of Science
publisher.none.fl_str_mv Public Library of Science
dc.source.none.fl_str_mv reponame:Recercat. Dipósit de la Recerca de Catalunya
instname:Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
instname_str Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
reponame_str Recercat. Dipósit de la Recerca de Catalunya
collection Recercat. Dipósit de la Recerca de Catalunya
repository.name.fl_str_mv
repository.mail.fl_str_mv
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