Reemerging of natural infection by Trypanosoma evansi in horses in Arari, Marajó Island, Brazil
Two outbreaks of trypanosomiasis by Trypanosoma evansi in horses in the municipality of Chaves, Marajó Island, Pará State, Brazil are reported. The first outbreak occurred in April 2011 in a farm with 147 horses; of these, 47 (31.97%) got sick, and 40 (27.21%) died. The second outbreak occurred in M...
| Autor principal: | SILVA, Josileide Araújo da |
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| Outros Autores: | DOMICIANO, Tarcísio Oliveira, MONTÃO, Daniele Pina, SOUSA, Paulo Geovani Silva, RAMOS, Leandro Lopes, PAREDES, Laura Jamille Argolo, GONZALEZ MONTEIRO, Silvia, RIVERO, Beatriz Riet Correa, SCOFIELD, Alessandra, BEZERRA JÚNIOR, Pedro, BEZERRA, Isis Abel, CERQUEIRA, Valíria Duarte |
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Universidade Federal do Pará
2017
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http://repositorio.ufpa.br/jspui/handle/2011/8650 |
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ir-2011-86502017-10-16T12:06:57Z Reemerging of natural infection by Trypanosoma evansi in horses in Arari, Marajó Island, Brazil Reemergência da infecção natural por Trypanosoma evansi em cavalos, na região do Arari, Ilha do Marajó, Brazil SILVA, Josileide Araújo da DOMICIANO, Tarcísio Oliveira MONTÃO, Daniele Pina SOUSA, Paulo Geovani Silva RAMOS, Leandro Lopes PAREDES, Laura Jamille Argolo GONZALEZ MONTEIRO, Silvia RIVERO, Beatriz Riet Correa SCOFIELD, Alessandra BEZERRA JÚNIOR, Pedro BEZERRA, Isis Abel CERQUEIRA, Valíria Duarte Trypanosoma evansi Equino Epidemiologia veterinária Ilha de Marajó - PA Two outbreaks of trypanosomiasis by Trypanosoma evansi in horses in the municipality of Chaves, Marajó Island, Pará State, Brazil are reported. The first outbreak occurred in April 2011 in a farm with 147 horses; of these, 47 (31.97%) got sick, and 40 (27.21%) died. The second outbreak occurred in May 2012 and involved nine properties. Of a total of 679 horses, 209 (30.07%) got sick, and 183 (26.97%) died. The main clinical signs observed in these horses were weight loss, abdominal edema, toe dragging, and pelvic muscle atrophy. Necropsy was performed in two horses, one from each outbreak. Macroscopic alterations were not seen in the horse from the first outbreak; however, the horse from the second outbreak exhibited emaciation, pallor and icterus, as well as enlarged spleen with prominent white pulp at cut surface. Histopathology of the central nervous system of both animals revealed mild to severe, diffuse lymphoplasmacytic encephalitis, with presence of Mott cells. Immunohistochemistry for T. evansi revealed structures similar to intralesional trypomastigote forms. Between November and December of 2013, an epidemiological survey was carried out in the municipalities of Cachoeira do Arari, Santa Cruz do Arari, Salvaterra, Soure, and Chaves. Only Santa Cruz do Arari and Chaves had reported cases of the disease. Blood samples were collected from 243 horses for detection of T. evansi DNA by polymerase chain reaction (PCR) and 20 were positive. São relatados dois surtos de tripanossomíase por Trypanosoma evansi , em cavalos no município de Chaves, Ilha do Marajó, Pará, Brasil. O primeiro surto ocorreu em abril de 2011 em uma fazenda com 147 cavalos, em que 47 (31,97%) adoeceram e 40 (27,21%) morreram. O segundo ocorreu em maio de 2012 e envolveu nove propriedades. De um total de 679 cavalos, 209 (30,07%) adoeceram e 183 (26,97%) morreram. Os principais sinais clínicos observados foram perda de peso, edema abdominal, emboletamento dos membros e atrofia da musculatura da região pélvica e membros posteriores. A necropsia foi realizada em dois cavalos, um de cada surto. O equino do primeiro surto não apresentou lesões macroscópicas, enquanto o segundo, do segundo surto, apresentava emagrecimento, palidez e icterícia, aumento do baço com protrusão da polpa branca ao corte. O sistema nervoso central de ambos os animais revelou uma leve à severa encefalite linfoplasmocitária, difusa, com presença de células de Mott. A imunohistoquímica para T. evansi revelou estruturas similares a formas tripomastigotas nas lesões. Entre novembro e dezembro de 2013, um levantamento epidemiológico foi realizado nos municípios de Cachoeira do Arari, Santa Cruz do Arari, Salvaterra, Soure e Chaves. Somente Santa Cruz do Arari e Chaves relataram casos da doença. Foram coletadas amostras de sangue de 243 equinos e realizada a reação em cadeia de polimerase (PCR) para a detecção do DNA de T. evansi das quais 20 foram positivas. 2017-06-09T14:17:45Z 2017-06-09T14:17:45Z 2016-12 Artigo de Periódico SILVA, Josileide Araújo da et al. Reemerging of natural infection by Trypanosoma evansi in horses in Arari, Marajó Island, Brazil. Ciência Rural, Santa Maria, v. 46, n. 12, p. 2170-2176, dez. 2016. Disponível em: <http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782016001202170&lng=pt&nrm=iso>. Acesso em: 09 jun. 2017. Epub 15-Set-2016. <http://dx.doi.org/10.1590/0103-8478cr20160047>. 1678-4596 http://repositorio.ufpa.br/jspui/handle/2011/8650 por Ciência Rural Acesso Aberto application/pdf Universidade Federal do Pará Brasil UFPA |
| institution |
Repositório Institucional - Universidade Federal do Pará |
| collection |
RI-UFPA |
| language |
por |
| topic |
Trypanosoma evansi Equino Epidemiologia veterinária Ilha de Marajó - PA |
| spellingShingle |
Trypanosoma evansi Equino Epidemiologia veterinária Ilha de Marajó - PA SILVA, Josileide Araújo da Reemerging of natural infection by Trypanosoma evansi in horses in Arari, Marajó Island, Brazil |
| topic_facet |
Trypanosoma evansi Equino Epidemiologia veterinária Ilha de Marajó - PA |
| description |
Two outbreaks of trypanosomiasis by Trypanosoma evansi in horses in the municipality of Chaves, Marajó Island, Pará State, Brazil are reported. The first outbreak occurred in April 2011 in a farm with 147 horses; of these, 47 (31.97%) got sick, and 40 (27.21%) died. The second outbreak occurred in May 2012 and involved nine properties. Of a total of 679 horses, 209 (30.07%) got sick, and 183 (26.97%) died. The main clinical signs observed in these horses were weight loss, abdominal edema, toe dragging, and pelvic muscle atrophy. Necropsy was performed in two horses, one from each outbreak. Macroscopic alterations were not seen in the horse from the first outbreak; however, the horse from the second outbreak exhibited emaciation, pallor and icterus, as well as enlarged spleen with prominent white pulp at cut surface. Histopathology of the central nervous system of both animals revealed mild to severe, diffuse lymphoplasmacytic encephalitis, with presence of Mott cells. Immunohistochemistry for T. evansi revealed structures similar to intralesional trypomastigote forms. Between November and December of 2013, an epidemiological survey was carried out in the municipalities of Cachoeira do Arari, Santa Cruz do Arari, Salvaterra, Soure, and Chaves. Only Santa Cruz do Arari and Chaves had reported cases of the disease. Blood samples were collected from 243 horses for detection of T. evansi DNA by polymerase chain reaction (PCR) and 20 were positive. |
| format |
Artigo |
| author |
SILVA, Josileide Araújo da |
| author2 |
DOMICIANO, Tarcísio Oliveira MONTÃO, Daniele Pina SOUSA, Paulo Geovani Silva RAMOS, Leandro Lopes PAREDES, Laura Jamille Argolo GONZALEZ MONTEIRO, Silvia RIVERO, Beatriz Riet Correa SCOFIELD, Alessandra BEZERRA JÚNIOR, Pedro BEZERRA, Isis Abel CERQUEIRA, Valíria Duarte |
| author2Str |
DOMICIANO, Tarcísio Oliveira MONTÃO, Daniele Pina SOUSA, Paulo Geovani Silva RAMOS, Leandro Lopes PAREDES, Laura Jamille Argolo GONZALEZ MONTEIRO, Silvia RIVERO, Beatriz Riet Correa SCOFIELD, Alessandra BEZERRA JÚNIOR, Pedro BEZERRA, Isis Abel CERQUEIRA, Valíria Duarte |
| title |
Reemerging of natural infection by Trypanosoma evansi in horses in Arari, Marajó Island, Brazil |
| title_short |
Reemerging of natural infection by Trypanosoma evansi in horses in Arari, Marajó Island, Brazil |
| title_full |
Reemerging of natural infection by Trypanosoma evansi in horses in Arari, Marajó Island, Brazil |
| title_fullStr |
Reemerging of natural infection by Trypanosoma evansi in horses in Arari, Marajó Island, Brazil |
| title_full_unstemmed |
Reemerging of natural infection by Trypanosoma evansi in horses in Arari, Marajó Island, Brazil |
| title_sort |
reemerging of natural infection by trypanosoma evansi in horses in arari, marajó island, brazil |
| publisher |
Universidade Federal do Pará |
| publishDate |
2017 |
| url |
http://repositorio.ufpa.br/jspui/handle/2011/8650 |
| _version_ |
1787148563702087680 |
| score |
11.674752 |