1. Serological responses in sheep injected with plasmids encoding bovine herpesvirus 1 (BHV-1) gD glycoprotein
- Author
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Cândido, A.L., Resende, M., Bessa, L.R.G., and Leite, R.C.
- Subjects
bovine herpesvirus-1.2a ,DNA vaccine ,glycoprotein D gene ,vacina de DNA ,animal diseases ,viruses ,virus diseases ,herpesvírus bovino-1.2a ,ELISA ,gene da glicoproteína D ,biochemical phenomena, metabolism, and nutrition - Abstract
A genetic vaccine consisting of the bovine herpesvirus-1.2a (BHV-1.2a) glycoprotein D (gD) gene under the control of the cytomegalovirus immediate-early promoter/enhancer was generated and administered to sheep intramuscularly in the neck. All animals developed serum antibodies which recognized the homologous antigen (BHV-1.2a strain BH-83) and also exhibited cross-reactivity against the heterologous antigen (BHV-5 strain EVI-190). Three intramuscularly injections were given but serological responses were not improved after the second inoculation. Specific antibodies were detected against BHV-1.2a until at least 12 months after the first inoculation. However, the capacity to induce antibodies against BHV-5 was lower and of shorter duration than to BHV-1.2a. Uma vacina geneticamente preparada com o gene da glicoproteína D do herpesvirus bovino-1.2a (BHV-1.2a) controlado com o promotor/potenciador imediatamente precoce de citomegalovírus foi administrada no pescoço de ovinos. Todos os animais produziram anticorpos séricos que reconheceram, em ELISA, o antígeno homólogo (BHV-1.2a, amostra BH-83) e também mostraram reatividade cruzada contra um antígeno heterólogo (BHV-5 amostra EVI-190). Foram aplicadas três inoculações, mas não houve melhora de resposta com a terceira inoculação. Resposta específica contra BHV-1.2a foi detectada pelo menos até 12 meses após a primeira inoculação, entretanto, a resposta sorológica contra o BHV-5 foi de menor intensidade e duração do que aquela contra o BHV-1.2a.
- Published
- 2003