Clinical and epidemiological aspects and diagnosis of Trypanosoma vivax infection in a cattle herd, state of Maranhão, Brazil
Autor(a) principal: | |
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Data de Publicação: | 2018 |
Outros Autores: | , , , , , |
Tipo de documento: | Artigo |
Idioma: | por |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1590/1678-5150-PVB-5303 http://hdl.handle.net/11449/171304 |
Resumo: | The objective of this study was to investigate the occurrence of trypanosomiasis in a dairy farm in municipality of Timon, State of Maranhão, Brazil. The owner reported abortus, births of weak calves, and mortality of adult animals with progressive weight loss. Visits to the property were carried out to obtain the history, realize animal examination and blood collection for the Woo test, hemograms, serological tests for trypanosomiasis, leptospirosis, and neosporosis and PCR for molecular diagnosis of Trypanosoma vivax. The identification of animals with low values in the hematocrit was the main hematological alteration identified in the herd. Two animals were positive in the Woo test and trypanosomes were visualized in blood smears, confirmed by molecular diagnosis as T. vivax. It was identified that 95.23% (40/42) of the animals with low hematocrit were serologically positive for T. vivax. The conditions identified in the property as an environment propitious to mechanical vectors, the presence of wild animals and the introduction of animals from states where trypanosomiasis outbreaks had already been reported were probably associated with the introduction and dissemination of the agent in the herd. The high number of serologically positive animals for trypanosomiasis 82.51% (151/183) shows that almost all the herd had contact with the agent. The rapid establishment of control measures, including the use of trypanocidal drugs, contributed to the control of the outbreak. The study allowed confirming the occurrence of another outbreak of trypanosomiasis in Brazil. The clinical diagnosis of the disease was difficult by the similarity of the clinical signs of trypanosomiasis with other diseases and the possibility of association of two or more diseases in the same patient, which emphasizes the importance of establishing adequate diagnostic measures as a way to avoid the dissemination of the disease and to minimize the economic losses of the producers. |
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Clinical and epidemiological aspects and diagnosis of Trypanosoma vivax infection in a cattle herd, state of Maranhão, BrazilAspectos clínicos, epidemiológicos e diagnóstico da infecção por Trypanosoma vivax em rebanho bovino no estado do MaranhãoCattleEpidemiologyHemoparasitesParasitosesTrypanosoma vivaxTrypasomiasisThe objective of this study was to investigate the occurrence of trypanosomiasis in a dairy farm in municipality of Timon, State of Maranhão, Brazil. The owner reported abortus, births of weak calves, and mortality of adult animals with progressive weight loss. Visits to the property were carried out to obtain the history, realize animal examination and blood collection for the Woo test, hemograms, serological tests for trypanosomiasis, leptospirosis, and neosporosis and PCR for molecular diagnosis of Trypanosoma vivax. The identification of animals with low values in the hematocrit was the main hematological alteration identified in the herd. Two animals were positive in the Woo test and trypanosomes were visualized in blood smears, confirmed by molecular diagnosis as T. vivax. It was identified that 95.23% (40/42) of the animals with low hematocrit were serologically positive for T. vivax. The conditions identified in the property as an environment propitious to mechanical vectors, the presence of wild animals and the introduction of animals from states where trypanosomiasis outbreaks had already been reported were probably associated with the introduction and dissemination of the agent in the herd. The high number of serologically positive animals for trypanosomiasis 82.51% (151/183) shows that almost all the herd had contact with the agent. The rapid establishment of control measures, including the use of trypanocidal drugs, contributed to the control of the outbreak. The study allowed confirming the occurrence of another outbreak of trypanosomiasis in Brazil. The clinical diagnosis of the disease was difficult by the similarity of the clinical signs of trypanosomiasis with other diseases and the possibility of association of two or more diseases in the same patient, which emphasizes the importance of establishing adequate diagnostic measures as a way to avoid the dissemination of the disease and to minimize the economic losses of the producers.Programa de Pós-Graduação em Ciência Animal Curso de Medicina Veterinária Departamento de Ciências Veterinárias Centro de Ciências Agrárias Universidade Federal da Paraíba (UFPB), Rodovia PB-079Departamento de Morfologia e Fisiologia Animal Universidade Federal Rural de Pernambuco (UFRPE), Rua Dom Manoel de Medeiros s/nPrograma de Pós-Graduação em Parasitologia Instituto de Ciências Biológicas Universidade Federal de Minas Gerais (UFMG), Av. Antônio Carlos 6627Curso de Medicina Veterinária Departamento de Clínica Cirurgia e Reprodução Animal Faculdade de Medicina Veterinária (FMV) Universidade Estadual Paulista (Unesp), Rua Clóvis Pestana 793Programa de Pós-Graduação em Medicina Veterinária Faculdade de Ciências Agrárias e Veterinárias Universidade Estadual Paulista (Unesp), Via de acesso Prof. Paulo Donato CastellaneCurso de Medicina Veterinária Departamento de Clínica Cirurgia e Reprodução Animal Faculdade de Medicina Veterinária (FMV) Universidade Estadual Paulista (Unesp), Rua Clóvis Pestana 793Programa de Pós-Graduação em Medicina Veterinária Faculdade de Ciências Agrárias e Veterinárias Universidade Estadual Paulista (Unesp), Via de acesso Prof. Paulo Donato CastellaneUniversidade Federal da Paraíba (UFPB)Universidade Federal Rural de Pernambuco (UFRPE)Universidade Federal de Minas Gerais (UFMG)Universidade Estadual Paulista (Unesp)Pereira, Hélio D.Simões, Sara V.D.Souza, Francisco A.L.Silveira, Júlia A.G.Ribeiro, Múcio F.B.Cadioli, Fabiano A. [UNESP]Sampaio, Paulo H. [UNESP]2018-12-11T16:54:49Z2018-12-11T16:54:49Z2018-05-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article896-901application/pdfhttp://dx.doi.org/10.1590/1678-5150-PVB-5303Pesquisa Veterinaria Brasileira, v. 38, n. 5, p. 896-901, 2018.1678-51500100-736Xhttp://hdl.handle.net/11449/17130410.1590/1678-5150-PVB-5303S0100-736X20180005008962-s2.0-85051046602S0100-736X2018000500896.pdfScopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPporPesquisa Veterinaria Brasileirainfo:eu-repo/semantics/openAccess2023-11-18T06:16:14Zoai:repositorio.unesp.br:11449/171304Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462023-11-18T06:16:14Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Clinical and epidemiological aspects and diagnosis of Trypanosoma vivax infection in a cattle herd, state of Maranhão, Brazil Aspectos clínicos, epidemiológicos e diagnóstico da infecção por Trypanosoma vivax em rebanho bovino no estado do Maranhão |
title |
Clinical and epidemiological aspects and diagnosis of Trypanosoma vivax infection in a cattle herd, state of Maranhão, Brazil |
spellingShingle |
Clinical and epidemiological aspects and diagnosis of Trypanosoma vivax infection in a cattle herd, state of Maranhão, Brazil Pereira, Hélio D. Cattle Epidemiology Hemoparasites Parasitoses Trypanosoma vivax Trypasomiasis |
title_short |
Clinical and epidemiological aspects and diagnosis of Trypanosoma vivax infection in a cattle herd, state of Maranhão, Brazil |
title_full |
Clinical and epidemiological aspects and diagnosis of Trypanosoma vivax infection in a cattle herd, state of Maranhão, Brazil |
title_fullStr |
Clinical and epidemiological aspects and diagnosis of Trypanosoma vivax infection in a cattle herd, state of Maranhão, Brazil |
title_full_unstemmed |
Clinical and epidemiological aspects and diagnosis of Trypanosoma vivax infection in a cattle herd, state of Maranhão, Brazil |
title_sort |
Clinical and epidemiological aspects and diagnosis of Trypanosoma vivax infection in a cattle herd, state of Maranhão, Brazil |
author |
Pereira, Hélio D. |
author_facet |
Pereira, Hélio D. Simões, Sara V.D. Souza, Francisco A.L. Silveira, Júlia A.G. Ribeiro, Múcio F.B. Cadioli, Fabiano A. [UNESP] Sampaio, Paulo H. [UNESP] |
author_role |
author |
author2 |
Simões, Sara V.D. Souza, Francisco A.L. Silveira, Júlia A.G. Ribeiro, Múcio F.B. Cadioli, Fabiano A. [UNESP] Sampaio, Paulo H. [UNESP] |
author2_role |
author author author author author author |
dc.contributor.none.fl_str_mv |
Universidade Federal da Paraíba (UFPB) Universidade Federal Rural de Pernambuco (UFRPE) Universidade Federal de Minas Gerais (UFMG) Universidade Estadual Paulista (Unesp) |
dc.contributor.author.fl_str_mv |
Pereira, Hélio D. Simões, Sara V.D. Souza, Francisco A.L. Silveira, Júlia A.G. Ribeiro, Múcio F.B. Cadioli, Fabiano A. [UNESP] Sampaio, Paulo H. [UNESP] |
dc.subject.por.fl_str_mv |
Cattle Epidemiology Hemoparasites Parasitoses Trypanosoma vivax Trypasomiasis |
topic |
Cattle Epidemiology Hemoparasites Parasitoses Trypanosoma vivax Trypasomiasis |
description |
The objective of this study was to investigate the occurrence of trypanosomiasis in a dairy farm in municipality of Timon, State of Maranhão, Brazil. The owner reported abortus, births of weak calves, and mortality of adult animals with progressive weight loss. Visits to the property were carried out to obtain the history, realize animal examination and blood collection for the Woo test, hemograms, serological tests for trypanosomiasis, leptospirosis, and neosporosis and PCR for molecular diagnosis of Trypanosoma vivax. The identification of animals with low values in the hematocrit was the main hematological alteration identified in the herd. Two animals were positive in the Woo test and trypanosomes were visualized in blood smears, confirmed by molecular diagnosis as T. vivax. It was identified that 95.23% (40/42) of the animals with low hematocrit were serologically positive for T. vivax. The conditions identified in the property as an environment propitious to mechanical vectors, the presence of wild animals and the introduction of animals from states where trypanosomiasis outbreaks had already been reported were probably associated with the introduction and dissemination of the agent in the herd. The high number of serologically positive animals for trypanosomiasis 82.51% (151/183) shows that almost all the herd had contact with the agent. The rapid establishment of control measures, including the use of trypanocidal drugs, contributed to the control of the outbreak. The study allowed confirming the occurrence of another outbreak of trypanosomiasis in Brazil. The clinical diagnosis of the disease was difficult by the similarity of the clinical signs of trypanosomiasis with other diseases and the possibility of association of two or more diseases in the same patient, which emphasizes the importance of establishing adequate diagnostic measures as a way to avoid the dissemination of the disease and to minimize the economic losses of the producers. |
publishDate |
2018 |
dc.date.none.fl_str_mv |
2018-12-11T16:54:49Z 2018-12-11T16:54:49Z 2018-05-01 |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://dx.doi.org/10.1590/1678-5150-PVB-5303 Pesquisa Veterinaria Brasileira, v. 38, n. 5, p. 896-901, 2018. 1678-5150 0100-736X http://hdl.handle.net/11449/171304 10.1590/1678-5150-PVB-5303 S0100-736X2018000500896 2-s2.0-85051046602 S0100-736X2018000500896.pdf |
url |
http://dx.doi.org/10.1590/1678-5150-PVB-5303 http://hdl.handle.net/11449/171304 |
identifier_str_mv |
Pesquisa Veterinaria Brasileira, v. 38, n. 5, p. 896-901, 2018. 1678-5150 0100-736X 10.1590/1678-5150-PVB-5303 S0100-736X2018000500896 2-s2.0-85051046602 S0100-736X2018000500896.pdf |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.none.fl_str_mv |
Pesquisa Veterinaria Brasileira |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
896-901 application/pdf |
dc.source.none.fl_str_mv |
Scopus reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
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1799964985523175424 |