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3. | | DAEMON, E.; FACCINI, J. L. H.; PRATA, M. C. A. Biologia da fase não parasitária de Boophilus microplus (Canestrini, 1887) (Acari: ixodidae) de origem caprina. Revista Brasileira de Parasitologia Veterinária, v. 6, n. 2, suplemento 1, p. 111, 1997. Resumo A68. Edição de anais do X Seminário de Parasitologia Veterinária; I Seminário de Parasitologia Veterinária dos Países do Mercosul, Itapema, SC, 1997. Biblioteca(s): Embrapa Caprinos e Ovinos. |
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9. | | SANTOS, S. B. dos; CANÇADO, P. H. D.; PIRANDA, E. M.; FACCINI, J. L. H. Infestações por Linognathus africanus (Kellogg e Paine, 1911) (Linognathidae) e Bovicola caprae (EWING, 1936) (Trichodectidae) em rebanho capino no estado do Rio de Janeiro, Brasil. Revista Brasileira de Parasitologia Veterinária, Rio de Janeiro, v. 15, n. 1, p. 41-43, 2006. Biblioteca(s): Embrapa Caprinos e Ovinos. |
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11. | | LIGNON, G. B.; SOBESTIANSKY, J.; GIROTTO, A. F.; FACCINI, J. L. H.; MEZACASA, M. L. Sarna Sarcoptica dos Suinos. I. Estrategia de Acao no Controle. Pesquisa Agropecuaria Brasileira, Brasilia, v.26, n.4, p.585-589, abr.1991 Biblioteca(s): Embrapa Unidades Centrais. |
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12. | | GIROTTO, A. F.; SOBESTIANSKY, J.; LIGNON, G. B.; FACCINI, J. L. H.; MEZACASA, M. L. Sarna sarcóptica dos suínos. II. Avaliação econômica de estratégias alternativas no controle. Pesquisa Agropecuária Brasileira, Brasília, DF, v. 30, n. 1, p. 125-129, jan. 1995. Título em inglês: Swine sarcoptic mange. II. Economic evaluation of alternative control strategies. Biblioteca(s): Embrapa Unidades Centrais. |
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13. | | LUZ, H. R.; FACCINI, J. L. H.; SILVA, H. R. da. Patterns of parasitism by Amblyomma rotundatum (Ixodidae) on Rhinella schneideri (Bufonidae) in islands of São Francisco River, Minas Gerais, Brazil. Pesquisa Veterinária Brasileira, Brasília, DF, v. 35, n. 6, p. 579-582, jun. 2015 Biblioteca(s): Embrapa Unidades Centrais. |
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17. | | CANCADO, P. H. D.; FACCINI, J. L. H.; MOURAO, G.; PIRANDA, E. M.; ONOFRIO, V. C.; BARROS-BATTESTI, D. M. Current status of ticks and tick-host relationship in domestic and wild animals from Pantanal wetlands in the state of Mato Grosso do Sul, Brazil. Iheringia, Série Zoologia, v. 107, supl., p. 1-8, 2017. Biblioteca(s): Embrapa Pantanal. |
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18. | | PIRANDA, E. M.; FACCINI, J. L. H.; PINTER, A.; PACHECO, R. C.; CANCADO, P. H. D.; LABRUNA, M. B. Experimental infection of Rhipicephalus sanguineus ticks with the Bacterium Rickettsia rickettsii, using experimentally infected dogs. Vector-Borne and Zoonotic Diseases, v.11, n.1, p.29-36, 2011. Biblioteca(s): Embrapa Gado de Corte. |
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19. | | NIERI-BASTOS, F. A.; MARTINS, T. F.; CANCADO, P. H. D.; FACCINI, J. L. H.; LABRUNA, M. B. Detection of a spotted fever group rickettsia in Amblyomma parvum (Acari: Ixodidae) from the Pantanal biome, Brazil. Biomédica, v.31, p. 87-102, 2011. Supplement. Edição dos resumos do CONGRESSO LATINOAMERICANO DE ENFERMEDADES RICKETTSIALES, 3., ENCUENTRO NACIONAL DE FIEBRES HEMORRÁGICAS, 1., 2011, Bogotá. Presentaciones orales. Bogotá: Pontificia Universidad Javeriana, 2011. p. 94 Biblioteca(s): Embrapa Gado de Corte. |
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20. | | RIBEIRO, C. C. D. U.; PINHEIRO, M. da C.; PIRANDA, E. M.; CANCADO, P. H. D.; FACCINI, J. L. H. Fase de vida livre de fêmeas de Ornithodoros rostratus Aragão, 1911 (acari: argasidae) alimentadas em coelhos. In: CONGRESSO BRASILEIRO DE PARASITOLOGIA VETERINÁRIA, 17., 2012, São Luis. Parasitologia veterinária, bem estar e produção animal: anais. São Luis: Colégio Brasileiro de Parasitologia Veterinária, 2012. p. 189 PA 133 Biblioteca(s): Embrapa Gado de Corte. |
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Registro Completo
Biblioteca(s): |
Embrapa Gado de Corte. |
Data corrente: |
31/03/2012 |
Data da última atualização: |
31/03/2012 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Circulação/Nível: |
A - 2 |
Autoria: |
PIRANDA, E. M.; FACCINI, J. L. H.; PINTER, A.; PACHECO, R. C.; CANCADO, P. H. D.; LABRUNA, M. B. |
Afiliação: |
Eliane M. Piranda, Curso de Medicina Veterinaria, Escola Superior Batista do Amazonas (ESBAM); Joao Luiz H. Faccini, UFRRJ; Adriano Pinter, Superintendencia de Controle de Endemias, SUCEN, Sao Paulo; Richard C. Pacheco, UFMT; PAULO HENRIQUE DUARTE CANCADO, CNPGC; Marcelo B. Labruna, USP. |
Título: |
Experimental infection of Rhipicephalus sanguineus ticks with the Bacterium Rickettsia rickettsii, using experimentally infected dogs. |
Ano de publicação: |
2011 |
Fonte/Imprenta: |
Vector-Borne and Zoonotic Diseases, v.11, n.1, p.29-36, 2011. |
Idioma: |
Inglês |
Conteúdo: |
We evaluated if Rickettsia rickettsii-experimentally infected dogs could serve as amplifier hosts for Rhipicephalus sanguineus ticks. In addition, we checked if Rh. sanguineus ticks that acquired Ri. rickettsii from dogs could transmit the bacterium to susceptible hosts (vector competence), and if these ticks could maintain the bacterium by transstadial and transovarial transmissions. Uninfected larvae, nymphs, and adults of Rh. sanguineus were allowed to feed upon three groups of dogs: groups 1 (G1) and 2 (G2) composed of Ri. rickettsii-infected dogs, infected intraperitoneally and via tick bites, respectively, and group 3 composed of uninfected dogs. After larval and nymphal feeding on rickettsemic dogs, 7.1?15.2% and 35.8?37.9% of the molted nymphs and adults, respectively, were shown by polymerase chain reaction (PCR) to be infected by Ri. rickettsii, confirming that both G1 and G2 dogs were efficient sources of rickettsial infection (amplifier host), resulting in transstadial transmission of the agent. These infected nymphs and adults successfully transmitted Ri. rickettsii to guinea pigs, confirming vector competence after acquisition of the infection from rickettsemic dogs. Transovarial transmission of Ri. rickettsii was observed in engorged females that had been infected as nymphs by feeding on both G1 and G2 dogs, but not in engorged females that acquired the infection during adult feeding on these same dogs. In the first case, filial infection rates were generally <50%. No tick exposed to G3 dogs was infected by rickettsiae in this study. No substantial mortality difference was observed between Ri. rickettsii-infected tick groups (G1 and G2) and uninfected tick group (G3). Our results indicate that dogs can be amplifier hosts of Ri. rickettsii for Rh. sanguineus, although only a minority of immature ticks (<45%) should become infected. It appears that Rh. sanguineus, in the absence of horizontal transmission, would not maintain Ri. rickettsii through successive generations, possibly because of low filial infection rates. MenosWe evaluated if Rickettsia rickettsii-experimentally infected dogs could serve as amplifier hosts for Rhipicephalus sanguineus ticks. In addition, we checked if Rh. sanguineus ticks that acquired Ri. rickettsii from dogs could transmit the bacterium to susceptible hosts (vector competence), and if these ticks could maintain the bacterium by transstadial and transovarial transmissions. Uninfected larvae, nymphs, and adults of Rh. sanguineus were allowed to feed upon three groups of dogs: groups 1 (G1) and 2 (G2) composed of Ri. rickettsii-infected dogs, infected intraperitoneally and via tick bites, respectively, and group 3 composed of uninfected dogs. After larval and nymphal feeding on rickettsemic dogs, 7.1?15.2% and 35.8?37.9% of the molted nymphs and adults, respectively, were shown by polymerase chain reaction (PCR) to be infected by Ri. rickettsii, confirming that both G1 and G2 dogs were efficient sources of rickettsial infection (amplifier host), resulting in transstadial transmission of the agent. These infected nymphs and adults successfully transmitted Ri. rickettsii to guinea pigs, confirming vector competence after acquisition of the infection from rickettsemic dogs. Transovarial transmission of Ri. rickettsii was observed in engorged females that had been infected as nymphs by feeding on both G1 and G2 dogs, but not in engorged females that acquired the infection during adult feeding on these same dogs. In the first case, filial infection rates were generally ... Mostrar Tudo |
Palavras-Chave: |
Bacterium Rickettsia rickettsii. |
Thesagro: |
Carrapato; Sanidade Animal. |
Thesaurus NAL: |
Rhipicephalus sanguineus. |
Categoria do assunto: |
L Ciência Animal e Produtos de Origem Animal |
Marc: |
LEADER 02817naa a2200229 a 4500 001 1921280 005 2012-03-31 008 2011 bl uuuu u00u1 u #d 100 1 $aPIRANDA, E. M. 245 $aExperimental infection of Rhipicephalus sanguineus ticks with the Bacterium Rickettsia rickettsii, using experimentally infected dogs.$h[electronic resource] 260 $c2011 520 $aWe evaluated if Rickettsia rickettsii-experimentally infected dogs could serve as amplifier hosts for Rhipicephalus sanguineus ticks. In addition, we checked if Rh. sanguineus ticks that acquired Ri. rickettsii from dogs could transmit the bacterium to susceptible hosts (vector competence), and if these ticks could maintain the bacterium by transstadial and transovarial transmissions. Uninfected larvae, nymphs, and adults of Rh. sanguineus were allowed to feed upon three groups of dogs: groups 1 (G1) and 2 (G2) composed of Ri. rickettsii-infected dogs, infected intraperitoneally and via tick bites, respectively, and group 3 composed of uninfected dogs. After larval and nymphal feeding on rickettsemic dogs, 7.1?15.2% and 35.8?37.9% of the molted nymphs and adults, respectively, were shown by polymerase chain reaction (PCR) to be infected by Ri. rickettsii, confirming that both G1 and G2 dogs were efficient sources of rickettsial infection (amplifier host), resulting in transstadial transmission of the agent. These infected nymphs and adults successfully transmitted Ri. rickettsii to guinea pigs, confirming vector competence after acquisition of the infection from rickettsemic dogs. Transovarial transmission of Ri. rickettsii was observed in engorged females that had been infected as nymphs by feeding on both G1 and G2 dogs, but not in engorged females that acquired the infection during adult feeding on these same dogs. In the first case, filial infection rates were generally <50%. No tick exposed to G3 dogs was infected by rickettsiae in this study. No substantial mortality difference was observed between Ri. rickettsii-infected tick groups (G1 and G2) and uninfected tick group (G3). Our results indicate that dogs can be amplifier hosts of Ri. rickettsii for Rh. sanguineus, although only a minority of immature ticks (<45%) should become infected. It appears that Rh. sanguineus, in the absence of horizontal transmission, would not maintain Ri. rickettsii through successive generations, possibly because of low filial infection rates. 650 $aRhipicephalus sanguineus 650 $aCarrapato 650 $aSanidade Animal 653 $aBacterium Rickettsia rickettsii 700 1 $aFACCINI, J. L. H. 700 1 $aPINTER, A. 700 1 $aPACHECO, R. C. 700 1 $aCANCADO, P. H. D. 700 1 $aLABRUNA, M. B. 773 $tVector-Borne and Zoonotic Diseases$gv.11, n.1, p.29-36, 2011.
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