Tuberculosis in wild South American sea lions Otaria flavescens stranded in Chubut, Argentina

Autores
Fiorito, Carla Daniela; Marfil, Maria Jimena; Falzoni, Elvira María; Martínez Vivot, Marcela; Zumárraga, Martín José; Lombardo, Daniel; Barandiaran, Soledad
Año de publicación
2020
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Pinniped tuberculosis, commonly caused by Mycobacterium pinnipedii, is a zoonotic disease reported in free-living and captive otariid species of the southern hemisphere. Currently, data concerning pinniped tuberculosis in South America are scarce, reinforcing the need for further studies of the disease in free-ranging pinnipeds. In this study, we investigated the presence of tuberculosis in South American sea lions Otaria flavescens (SASLs) stranded along the Chubut coastline (Argentina). Necropsies were performed in 9 SASLs, and tissue samples were collected for histopathology, bacteriology, and molecular diagnosis. Four SASLs showed enlarged tracheobronchial lymph nodes (TBLNs) with multifocal to coalescing granulomas. In these animals, a direct IS6110-PCR amplification confirmed the presence of a Mycobacterium tuberculosis complex member in TBLNs (n = 4) and lungs (n = 2), but the agent could not be further identified. In one SASL, Mycobacterium murale was isolated from lungs without lesions. This study confirms the presence of tuberculosis in SASLs from Chubut, where tourist activities promote close interaction with the animals, generating a potential risk to human health. Further research is currently focusing on addressing the prevalence of tuberculosis in wild SASLs, to assess the risk for public health and develop management strategies to avoid human infection.
Fil: Fiorito, Carla Daniela. Universidad de Buenos Aires. Facultad de Ciencias Veterinarias. Instituto de Investigación y Tecnología en Reproducción Animal; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Centro Nacional Patagónico. Centro para el Estudio de Sistemas Marinos; Argentina
Fil: Marfil, Maria Jimena. Universidad de Buenos Aires. Facultad de Ciencias Veterinarias; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Falzoni, Elvira María. Universidad de Buenos Aires. Facultad de Ciencias Veterinarias; Argentina
Fil: Martínez Vivot, Marcela. Universidad de Buenos Aires. Facultad de Ciencias Veterinarias; Argentina
Fil: Zumárraga, Martín José. Instituto Nacional de Tecnología Agropecuaria. Centro de Investigación en Ciencias Veterinarias y Agronómicas. Instituto de Agrobiotecnología y Biología Molecular. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Instituto de Agrobiotecnología y Biología Molecular; Argentina
Fil: Lombardo, Daniel. Universidad de Buenos Aires. Facultad de Ciencias Veterinarias. Instituto de Investigación y Tecnología en Reproducción Animal; Argentina
Fil: Barandiaran, Soledad. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad de Buenos Aires. Facultad de Ciencias Veterinarias; Argentina
Materia
MYCOBACTERIUM TUBERCULOSIS COMPLEX
PINNIPEDS
PUBLIC HEALTH
TUBERCULOSIS
ZOONOSIS
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/142221
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/142221
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Tuberculosis in wild South American sea lions Otaria flavescens stranded in Chubut, ArgentinaFiorito, Carla DanielaMarfil, Maria JimenaFalzoni, Elvira MaríaMartínez Vivot, MarcelaZumárraga, Martín JoséLombardo, DanielBarandiaran, SoledadMYCOBACTERIUM TUBERCULOSIS COMPLEXPINNIPEDSPUBLIC HEALTHTUBERCULOSISZOONOSIShttps://purl.org/becyt/ford/4.3https://purl.org/becyt/ford/4Pinniped tuberculosis, commonly caused by Mycobacterium pinnipedii, is a zoonotic disease reported in free-living and captive otariid species of the southern hemisphere. Currently, data concerning pinniped tuberculosis in South America are scarce, reinforcing the need for further studies of the disease in free-ranging pinnipeds. In this study, we investigated the presence of tuberculosis in South American sea lions Otaria flavescens (SASLs) stranded along the Chubut coastline (Argentina). Necropsies were performed in 9 SASLs, and tissue samples were collected for histopathology, bacteriology, and molecular diagnosis. Four SASLs showed enlarged tracheobronchial lymph nodes (TBLNs) with multifocal to coalescing granulomas. In these animals, a direct IS6110-PCR amplification confirmed the presence of a Mycobacterium tuberculosis complex member in TBLNs (n = 4) and lungs (n = 2), but the agent could not be further identified. In one SASL, Mycobacterium murale was isolated from lungs without lesions. This study confirms the presence of tuberculosis in SASLs from Chubut, where tourist activities promote close interaction with the animals, generating a potential risk to human health. Further research is currently focusing on addressing the prevalence of tuberculosis in wild SASLs, to assess the risk for public health and develop management strategies to avoid human infection.Fil: Fiorito, Carla Daniela. Universidad de Buenos Aires. Facultad de Ciencias Veterinarias. Instituto de Investigación y Tecnología en Reproducción Animal; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Centro Nacional Patagónico. Centro para el Estudio de Sistemas Marinos; ArgentinaFil: Marfil, Maria Jimena. Universidad de Buenos Aires. Facultad de Ciencias Veterinarias; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Falzoni, Elvira María. Universidad de Buenos Aires. Facultad de Ciencias Veterinarias; ArgentinaFil: Martínez Vivot, Marcela. Universidad de Buenos Aires. Facultad de Ciencias Veterinarias; ArgentinaFil: Zumárraga, Martín José. Instituto Nacional de Tecnología Agropecuaria. Centro de Investigación en Ciencias Veterinarias y Agronómicas. Instituto de Agrobiotecnología y Biología Molecular. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Instituto de Agrobiotecnología y Biología Molecular; ArgentinaFil: Lombardo, Daniel. Universidad de Buenos Aires. Facultad de Ciencias Veterinarias. Instituto de Investigación y Tecnología en Reproducción Animal; ArgentinaFil: Barandiaran, Soledad. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad de Buenos Aires. Facultad de Ciencias Veterinarias; ArgentinaInter-Research2020-11info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/142221Fiorito, Carla Daniela; Marfil, Maria Jimena; Falzoni, Elvira María; Martínez Vivot, Marcela; Zumárraga, Martín José; et al.; Tuberculosis in wild South American sea lions Otaria flavescens stranded in Chubut, Argentina; Inter-Research; Diseases Of Aquatic Organisms; 142; 11-2020; 33-400177-5103CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://www.int-res.com/articles/dao2020/142/d142p033.pdfinfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-22T11:31:51Zoai:ri.conicet.gov.ar:11336/142221instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-10-22 11:31:51.481CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Tuberculosis in wild South American sea lions Otaria flavescens stranded in Chubut, Argentina
title Tuberculosis in wild South American sea lions Otaria flavescens stranded in Chubut, Argentina
spellingShingle Tuberculosis in wild South American sea lions Otaria flavescens stranded in Chubut, Argentina
Fiorito, Carla Daniela
MYCOBACTERIUM TUBERCULOSIS COMPLEX
PINNIPEDS
PUBLIC HEALTH
TUBERCULOSIS
ZOONOSIS
title_short Tuberculosis in wild South American sea lions Otaria flavescens stranded in Chubut, Argentina
title_full Tuberculosis in wild South American sea lions Otaria flavescens stranded in Chubut, Argentina
title_fullStr Tuberculosis in wild South American sea lions Otaria flavescens stranded in Chubut, Argentina
title_full_unstemmed Tuberculosis in wild South American sea lions Otaria flavescens stranded in Chubut, Argentina
title_sort Tuberculosis in wild South American sea lions Otaria flavescens stranded in Chubut, Argentina
dc.creator.none.fl_str_mv Fiorito, Carla Daniela
Marfil, Maria Jimena
Falzoni, Elvira María
Martínez Vivot, Marcela
Zumárraga, Martín José
Lombardo, Daniel
Barandiaran, Soledad
author Fiorito, Carla Daniela
author_facet Fiorito, Carla Daniela
Marfil, Maria Jimena
Falzoni, Elvira María
Martínez Vivot, Marcela
Zumárraga, Martín José
Lombardo, Daniel
Barandiaran, Soledad
author_role author
author2 Marfil, Maria Jimena
Falzoni, Elvira María
Martínez Vivot, Marcela
Zumárraga, Martín José
Lombardo, Daniel
Barandiaran, Soledad
author2_role author
author
author
author
author
author
dc.subject.none.fl_str_mv MYCOBACTERIUM TUBERCULOSIS COMPLEX
PINNIPEDS
PUBLIC HEALTH
TUBERCULOSIS
ZOONOSIS
topic MYCOBACTERIUM TUBERCULOSIS COMPLEX
PINNIPEDS
PUBLIC HEALTH
TUBERCULOSIS
ZOONOSIS
purl_subject.fl_str_mv https://purl.org/becyt/ford/4.3
https://purl.org/becyt/ford/4
dc.description.none.fl_txt_mv Pinniped tuberculosis, commonly caused by Mycobacterium pinnipedii, is a zoonotic disease reported in free-living and captive otariid species of the southern hemisphere. Currently, data concerning pinniped tuberculosis in South America are scarce, reinforcing the need for further studies of the disease in free-ranging pinnipeds. In this study, we investigated the presence of tuberculosis in South American sea lions Otaria flavescens (SASLs) stranded along the Chubut coastline (Argentina). Necropsies were performed in 9 SASLs, and tissue samples were collected for histopathology, bacteriology, and molecular diagnosis. Four SASLs showed enlarged tracheobronchial lymph nodes (TBLNs) with multifocal to coalescing granulomas. In these animals, a direct IS6110-PCR amplification confirmed the presence of a Mycobacterium tuberculosis complex member in TBLNs (n = 4) and lungs (n = 2), but the agent could not be further identified. In one SASL, Mycobacterium murale was isolated from lungs without lesions. This study confirms the presence of tuberculosis in SASLs from Chubut, where tourist activities promote close interaction with the animals, generating a potential risk to human health. Further research is currently focusing on addressing the prevalence of tuberculosis in wild SASLs, to assess the risk for public health and develop management strategies to avoid human infection.
Fil: Fiorito, Carla Daniela. Universidad de Buenos Aires. Facultad de Ciencias Veterinarias. Instituto de Investigación y Tecnología en Reproducción Animal; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Centro Nacional Patagónico. Centro para el Estudio de Sistemas Marinos; Argentina
Fil: Marfil, Maria Jimena. Universidad de Buenos Aires. Facultad de Ciencias Veterinarias; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Falzoni, Elvira María. Universidad de Buenos Aires. Facultad de Ciencias Veterinarias; Argentina
Fil: Martínez Vivot, Marcela. Universidad de Buenos Aires. Facultad de Ciencias Veterinarias; Argentina
Fil: Zumárraga, Martín José. Instituto Nacional de Tecnología Agropecuaria. Centro de Investigación en Ciencias Veterinarias y Agronómicas. Instituto de Agrobiotecnología y Biología Molecular. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Instituto de Agrobiotecnología y Biología Molecular; Argentina
Fil: Lombardo, Daniel. Universidad de Buenos Aires. Facultad de Ciencias Veterinarias. Instituto de Investigación y Tecnología en Reproducción Animal; Argentina
Fil: Barandiaran, Soledad. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad de Buenos Aires. Facultad de Ciencias Veterinarias; Argentina
description Pinniped tuberculosis, commonly caused by Mycobacterium pinnipedii, is a zoonotic disease reported in free-living and captive otariid species of the southern hemisphere. Currently, data concerning pinniped tuberculosis in South America are scarce, reinforcing the need for further studies of the disease in free-ranging pinnipeds. In this study, we investigated the presence of tuberculosis in South American sea lions Otaria flavescens (SASLs) stranded along the Chubut coastline (Argentina). Necropsies were performed in 9 SASLs, and tissue samples were collected for histopathology, bacteriology, and molecular diagnosis. Four SASLs showed enlarged tracheobronchial lymph nodes (TBLNs) with multifocal to coalescing granulomas. In these animals, a direct IS6110-PCR amplification confirmed the presence of a Mycobacterium tuberculosis complex member in TBLNs (n = 4) and lungs (n = 2), but the agent could not be further identified. In one SASL, Mycobacterium murale was isolated from lungs without lesions. This study confirms the presence of tuberculosis in SASLs from Chubut, where tourist activities promote close interaction with the animals, generating a potential risk to human health. Further research is currently focusing on addressing the prevalence of tuberculosis in wild SASLs, to assess the risk for public health and develop management strategies to avoid human infection.
publishDate 2020
dc.date.none.fl_str_mv 2020-11
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/142221
Fiorito, Carla Daniela; Marfil, Maria Jimena; Falzoni, Elvira María; Martínez Vivot, Marcela; Zumárraga, Martín José; et al.; Tuberculosis in wild South American sea lions Otaria flavescens stranded in Chubut, Argentina; Inter-Research; Diseases Of Aquatic Organisms; 142; 11-2020; 33-40
0177-5103
CONICET Digital
CONICET
url http://hdl.handle.net/11336/142221
identifier_str_mv Fiorito, Carla Daniela; Marfil, Maria Jimena; Falzoni, Elvira María; Martínez Vivot, Marcela; Zumárraga, Martín José; et al.; Tuberculosis in wild South American sea lions Otaria flavescens stranded in Chubut, Argentina; Inter-Research; Diseases Of Aquatic Organisms; 142; 11-2020; 33-40
0177-5103
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/https://www.int-res.com/articles/dao2020/142/d142p033.pdf
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
application/pdf
application/pdf
application/pdf
dc.publisher.none.fl_str_mv Inter-Research
publisher.none.fl_str_mv Inter-Research
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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