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Occurrence of Bovine Cysticercosis in Two Regions of the State of Tocantins-Brazil and the Importance of Pathogen Identification

Bovine cysticercosis, caused by Taenia saginata metacestodes, is the cause of significant economic losses to the meat production chain by condemnation and downgrading of infected carcasses. It is also a public health issue causing human taeniasis. This study evaluated the occurrence of bovine cystic...

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Autores principales: FIGUEIREDO, Benta Natânia Silva, LIBóRIO, Ricardo Alencar, SATO, Megumi, da SILVA, Camila Figueira, PEREIRA-JUNIOR, Ronaldo Alves, CHIGUSA, Yuichi, KAWAI, Satoru, SATO, Marcello Otake
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2019
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6631241/
https://www.ncbi.nlm.nih.gov/pubmed/31137506
http://dx.doi.org/10.3390/pathogens8020066
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author FIGUEIREDO, Benta Natânia Silva
LIBóRIO, Ricardo Alencar
SATO, Megumi
da SILVA, Camila Figueira
PEREIRA-JUNIOR, Ronaldo Alves
CHIGUSA, Yuichi
KAWAI, Satoru
SATO, Marcello Otake
author_facet FIGUEIREDO, Benta Natânia Silva
LIBóRIO, Ricardo Alencar
SATO, Megumi
da SILVA, Camila Figueira
PEREIRA-JUNIOR, Ronaldo Alves
CHIGUSA, Yuichi
KAWAI, Satoru
SATO, Marcello Otake
author_sort FIGUEIREDO, Benta Natânia Silva
collection PubMed
description Bovine cysticercosis, caused by Taenia saginata metacestodes, is the cause of significant economic losses to the meat production chain by condemnation and downgrading of infected carcasses. It is also a public health issue causing human taeniasis. This study evaluated the occurrence of bovine cysticercosis at the meat inspection procedures in slaughterhouses of south and north regions of the Tocantins State in Brazil. Specimens identified as cysts of T. saginata were collected and analyzed by molecular (PCR) and histopathological techniques. The cysts were collected from March to December of 2010 in slaughterhouses located in the cities of Alvorada (South) and Araguaína (North). The frequency of cystic lesions during the study was 0.033% (53/164,091) with 69.81% of calcified lesions and 30.9% of live cysts at meat inspection. From 14 samples submitted to molecular analysis, 28.57% (4/14) were positive for T. saginata. The histopathological analysis of the non-T. saginata samples showed lesions suggestive of granuloma and hydatid disease. The results indicated that the identification of the etiological agent is difficult by macroscopic inspection, emphasizing the need to associate specific diagnostic methods at meat inspection in abattoirs. In addition, species-specific PCR would be an effective tool for diagnosis, monitoring, and identifying cysticercosis, assisting the conventional tests.
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spelling pubmed-66312412019-08-19 Occurrence of Bovine Cysticercosis in Two Regions of the State of Tocantins-Brazil and the Importance of Pathogen Identification FIGUEIREDO, Benta Natânia Silva LIBóRIO, Ricardo Alencar SATO, Megumi da SILVA, Camila Figueira PEREIRA-JUNIOR, Ronaldo Alves CHIGUSA, Yuichi KAWAI, Satoru SATO, Marcello Otake Pathogens Article Bovine cysticercosis, caused by Taenia saginata metacestodes, is the cause of significant economic losses to the meat production chain by condemnation and downgrading of infected carcasses. It is also a public health issue causing human taeniasis. This study evaluated the occurrence of bovine cysticercosis at the meat inspection procedures in slaughterhouses of south and north regions of the Tocantins State in Brazil. Specimens identified as cysts of T. saginata were collected and analyzed by molecular (PCR) and histopathological techniques. The cysts were collected from March to December of 2010 in slaughterhouses located in the cities of Alvorada (South) and Araguaína (North). The frequency of cystic lesions during the study was 0.033% (53/164,091) with 69.81% of calcified lesions and 30.9% of live cysts at meat inspection. From 14 samples submitted to molecular analysis, 28.57% (4/14) were positive for T. saginata. The histopathological analysis of the non-T. saginata samples showed lesions suggestive of granuloma and hydatid disease. The results indicated that the identification of the etiological agent is difficult by macroscopic inspection, emphasizing the need to associate specific diagnostic methods at meat inspection in abattoirs. In addition, species-specific PCR would be an effective tool for diagnosis, monitoring, and identifying cysticercosis, assisting the conventional tests. MDPI 2019-05-20 /pmc/articles/PMC6631241/ /pubmed/31137506 http://dx.doi.org/10.3390/pathogens8020066 Text en © 2019 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
FIGUEIREDO, Benta Natânia Silva
LIBóRIO, Ricardo Alencar
SATO, Megumi
da SILVA, Camila Figueira
PEREIRA-JUNIOR, Ronaldo Alves
CHIGUSA, Yuichi
KAWAI, Satoru
SATO, Marcello Otake
Occurrence of Bovine Cysticercosis in Two Regions of the State of Tocantins-Brazil and the Importance of Pathogen Identification
title Occurrence of Bovine Cysticercosis in Two Regions of the State of Tocantins-Brazil and the Importance of Pathogen Identification
title_full Occurrence of Bovine Cysticercosis in Two Regions of the State of Tocantins-Brazil and the Importance of Pathogen Identification
title_fullStr Occurrence of Bovine Cysticercosis in Two Regions of the State of Tocantins-Brazil and the Importance of Pathogen Identification
title_full_unstemmed Occurrence of Bovine Cysticercosis in Two Regions of the State of Tocantins-Brazil and the Importance of Pathogen Identification
title_short Occurrence of Bovine Cysticercosis in Two Regions of the State of Tocantins-Brazil and the Importance of Pathogen Identification
title_sort occurrence of bovine cysticercosis in two regions of the state of tocantins-brazil and the importance of pathogen identification
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6631241/
https://www.ncbi.nlm.nih.gov/pubmed/31137506
http://dx.doi.org/10.3390/pathogens8020066
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