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Registro Completo |
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Biblioteca(s): |
Embrapa Pantanal. |
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Data corrente: |
22/08/2011 |
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Data da última atualização: |
19/02/2013 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
ALVES, F. M.; OLIFIERS, N.; BIANCHI, R. de C.; DUARTE, A. C.; COTIAS, P. M. T.; D´ANDREA, P. S.; GOMPPER, M. E.; MOURAO, G. de M.; HERRERA, H. M.; JANSEN, A. M. |
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Afiliação: |
FERNANDA MOREIRA ALVES, FIOCRUZ/RJ; NATALIE OLIFIERS, UNIVERSITY OF MISSOURI; RITA DE CASSIA BIANCHI; ANA CLAUDIA DUARTE, FIOCRUZ/RJ; PAULO MARCELO TENÓRIO COTIAS, FIOCRUZ/RJ; PAULO SÉRGIO D´ANDREA, FIOCRUZ/RJ; MATTHEW EDZART GOMPPER, UNIVERSITY OF MISSOURI; GUILHERME DE MIRANDA MOURAO, CPAP; HEITOR MIRAGLIA HERRERA; ANA MARIA JANSEN, FIOCRUZ/RJ. |
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Título: |
Modulating Variables of Trypanosoma cruzi and Trypanosoma evansi Transmission in Free-Ranging Coati (Nasua nasua) from the Brazilian Pantanal Region. |
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Ano de publicação: |
2011 |
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Fonte/Imprenta: |
Vector-Borne and Zoonotic Diseases, v. 11, n. 7, p. 835-841, 2011. |
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Idioma: |
Português |
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Conteúdo: |
This is a long-term follow-up of infection by Trypanosoma cruzi (TC) and Trypanosoma evansi (TE) in the freeranging coatis (Procyonidae: Nasua nasua) from Pantanal region (Mato Grosso do Sul, Brazil). We evaluated TC and TE infection by immunofluorescence assay, hemoculture (HC), and microhematocrit centrifuge techniques (MHCT). We also examined coatis health by quantifying hematological parameters including packed cell volume (PCV), white blood cell (WBC) count, and differential leukocyte count. TC isolates thought HC were typed by miniexon gene. Mixed infections by both parasites and the two main lineages of TC (76% TCI, 3% TCII, and 14% TCI/TCII) were observed. Trypanosoma rangeli was also isolated (7%). Overall, seroprevalence of TC and TE infection were 53.5% and 42.0%, respectively. Positive HC (indicating high TC parasitemia) occurred in 34% of seropositive coatis for TC, and positive MHCT (high TE parasitemia) were observed in 36.4% of seropositive coatis for TE. We detected higher prevalence of positive HC in females (72%) than males (43%), and also during the dry season, indicating a seasonal potential of this host species on TC transmission. These features did not occur for TE infection. However, prevalence of TE based on serology and MHCT was higher among adults than subadults. Coatis with positive HC or MHCT displayed a slight decrease in their WBC. In contrast to the animals with positive HC, coatis with positive MHCT displayed a decrease on their PCV. Moreover, concurrent high TC and TE parasitemia caused a larger decrease of PCV values. This study corroborates the importance of coatis in the maintenance of TC and TE transmission cycles in the southern Pantanal and shows a seasonal character of TC transmissibility to its vector by the coati population from the study area. MenosThis is a long-term follow-up of infection by Trypanosoma cruzi (TC) and Trypanosoma evansi (TE) in the freeranging coatis (Procyonidae: Nasua nasua) from Pantanal region (Mato Grosso do Sul, Brazil). We evaluated TC and TE infection by immunofluorescence assay, hemoculture (HC), and microhematocrit centrifuge techniques (MHCT). We also examined coatis health by quantifying hematological parameters including packed cell volume (PCV), white blood cell (WBC) count, and differential leukocyte count. TC isolates thought HC were typed by miniexon gene. Mixed infections by both parasites and the two main lineages of TC (76% TCI, 3% TCII, and 14% TCI/TCII) were observed. Trypanosoma rangeli was also isolated (7%). Overall, seroprevalence of TC and TE infection were 53.5% and 42.0%, respectively. Positive HC (indicating high TC parasitemia) occurred in 34% of seropositive coatis for TC, and positive MHCT (high TE parasitemia) were observed in 36.4% of seropositive coatis for TE. We detected higher prevalence of positive HC in females (72%) than males (43%), and also during the dry season, indicating a seasonal potential of this host species on TC transmission. These features did not occur for TE infection. However, prevalence of TE based on serology and MHCT was higher among adults than subadults. Coatis with positive HC or MHCT displayed a slight decrease in their WBC. In contrast to the animals with positive HC, coatis with positive MHCT displayed a decrease on their PCV. Moreover... Mostrar Tudo |
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Palavras-Chave: |
Vector. |
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Thesaurus Nal: |
parasites; serology. |
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Categoria do assunto: |
L Ciência Animal e Produtos de Origem Animal |
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Marc: |
LEADER 02613naa a2200265 a 4500
001 1898497
005 2013-02-19
008 2011 bl --- 0-- u #d
100 1 $aALVES, F. M.
245 $aModulating Variables of Trypanosoma cruzi and Trypanosoma evansi Transmission in Free-Ranging Coati (Nasua nasua) from the Brazilian Pantanal Region.
260 $c2011
520 $aThis is a long-term follow-up of infection by Trypanosoma cruzi (TC) and Trypanosoma evansi (TE) in the freeranging coatis (Procyonidae: Nasua nasua) from Pantanal region (Mato Grosso do Sul, Brazil). We evaluated TC and TE infection by immunofluorescence assay, hemoculture (HC), and microhematocrit centrifuge techniques (MHCT). We also examined coatis health by quantifying hematological parameters including packed cell volume (PCV), white blood cell (WBC) count, and differential leukocyte count. TC isolates thought HC were typed by miniexon gene. Mixed infections by both parasites and the two main lineages of TC (76% TCI, 3% TCII, and 14% TCI/TCII) were observed. Trypanosoma rangeli was also isolated (7%). Overall, seroprevalence of TC and TE infection were 53.5% and 42.0%, respectively. Positive HC (indicating high TC parasitemia) occurred in 34% of seropositive coatis for TC, and positive MHCT (high TE parasitemia) were observed in 36.4% of seropositive coatis for TE. We detected higher prevalence of positive HC in females (72%) than males (43%), and also during the dry season, indicating a seasonal potential of this host species on TC transmission. These features did not occur for TE infection. However, prevalence of TE based on serology and MHCT was higher among adults than subadults. Coatis with positive HC or MHCT displayed a slight decrease in their WBC. In contrast to the animals with positive HC, coatis with positive MHCT displayed a decrease on their PCV. Moreover, concurrent high TC and TE parasitemia caused a larger decrease of PCV values. This study corroborates the importance of coatis in the maintenance of TC and TE transmission cycles in the southern Pantanal and shows a seasonal character of TC transmissibility to its vector by the coati population from the study area.
650 $aparasites
650 $aserology
653 $aVector
700 1 $aOLIFIERS, N.
700 1 $aBIANCHI, R. de C.
700 1 $aDUARTE, A. C.
700 1 $aCOTIAS, P. M. T.
700 1 $aD´ANDREA, P. S.
700 1 $aGOMPPER, M. E.
700 1 $aMOURAO, G. de M.
700 1 $aHERRERA, H. M.
700 1 $aJANSEN, A. M.
773 $tVector-Borne and Zoonotic Diseases$gv. 11, n. 7, p. 835-841, 2011.
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Embrapa Pantanal (CPAP) |
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