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| Batista,H.B.C.R.; Schmidt,E.; Caldas,E.; Massunaga,P.; Teixeira,T.F.; Schaefer,R.; Roehe,P.M.. |
| The occurrence of rabies virus antigenic variants in North and Central West regions of Brazil was studied using 61 rabies viruses isolated from different species: 30 from domestic dogs, 20 from cattle, four from horses, two from cats, one from a human and four from unidentified species. The isolates were submitted to antigenic analyses by indirect immunofluorescence with a panel of 12 monoclonal antibodies (Mabs) to lyssavirus antigens. Antigenic analyses revealed consistent differences between isolates whose natural hosts were dogs and those of haematophagous bats, often isolated from cattle. Three out of four isolates from horses and one from a domestic dog showed patterns of reactivity found only in viruses of insectivorous bats, indicating that... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Vírus rábico; Caracterização antigênica; Variantes. |
| Ano: 2008 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352008000100036 |
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| Spilki,F.R.; Silva,T.C.; Esteves,P.A.; Teixeira,M.B.; Batista,H.B.C.R.; Chiminazzo,C.; Driemeier,D.; Franco,A.C.; Roehe,P.M.. |
| During a series of experiments attempting to reproduce clinically apparent bovine herpesvirus type 5 (BoHV-5) infections, a group of calves was inadvertently infected with bovine viral diarrhoea virus (BVDV). Another group of calves was infected with BoHV-5 only. This paper reports the outcome of such infections. Two out of six calves solely infected with BoHV-5 displayed moderate to severe clinical signs. Three out of four calves of the group co-infected with BoHV-5 and BVDV developed severe clinical signs, two of them died. BoHV-5 virus was isolated to higher titres and for a longer period from the group of calves infected with both viruses. These results suggest that BVDV may enhance clinical signs induced by BoHV-5 and may also play a role in extending... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: BoHV-5; BVDV; Co-infection; Experimental inoculation. |
| Ano: 2006 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352006000500001 |
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| Batista,H.B.C.R.; Schmidt,E.; Spilki,F.R.; Franco,A.C.; Roehe,P.M.. |
| Verificou-se a incidência de herpesvírus bovinos (BoHVs) em encéfalos de bovinos submetidos ao diagnóstico de raiva no estado do Rio Grande do Sul. Para tanto, amostras coletadas durante dois anos (n=70) foram submetidas ao isolamento viral em cultivos celulares. Os BoHVs foram isolados em dois (2,9%) encéfalos. Após serem submetidas à caracterização antigênica e molecular, as amostras foram subtipadas como BoHV-1.1 e BoHV-1.2b. A BoHV-1.1 foi isolada de um encéfalo que foi também positivo para raiva. O vírus da raiva foi identificado em 11 amostras (15,7%). Estes achados revelam que a incidência de BoHVs em forma infecciosa em bovinos com encefalite foi baixa, embora represente 16,7% (2/12) dos encéfalos nos quais um agente viral foi identificado. Tal... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Herpesvírus bovino-1; BoHV-1; BoHV-1.2b; Raiva; Encefalite. |
| Ano: 2010 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352010000500001 |
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