2010
DOI: 10.1590/s0100-736x2010000100007
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Abstract: ABSTRACT.-Weiss M., Vogel F.S.F., Martins M., Weiblen R., Roehe P.M., Franco A.C. & Flores E.F. 2010. Genital immunization of heifers with a glycoprotein E-deleted, recombinant bovine herpesvirus 1 strain confers protection upon challenge with a virulent isolate. Pesquisa Veterinária Brasileira 30(1):42-50. Departamento de Medicina Veterinária Preventiva, Universidade Federal de Santa Maria, 97105-900 Santa Maria, RS, Brazil. E-mail: eduardofurtadoflores@gmail.com Venereal infection of seronegative heifers a… Show more

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Cited by 4 publications
(10 citation statements)
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References 32 publications
(53 reference statements)
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“…None of the vaccinated/inoculated animals produced antibodies to gE, even when tested a long time after vaccination, and also after a boost immunization. In contrast, most calves vaccinated IM with an inactivated vaccine containing the parental virus (Brum et al 2010b) or immunized/inoculated with the live parental virus or with a gE-deleted BoHV-1 seroconverted to gE after 30 or 40 days (Brum et al 2010b, Weiss et al 2010. Thus, the serological response induced by the recombinant virus is gE-ELISA differentiable from that induced by infection or immunization with the whole, inactivated or live virus.…”
Section: Discussionmentioning
confidence: 96%
See 1 more Smart Citation
“…None of the vaccinated/inoculated animals produced antibodies to gE, even when tested a long time after vaccination, and also after a boost immunization. In contrast, most calves vaccinated IM with an inactivated vaccine containing the parental virus (Brum et al 2010b) or immunized/inoculated with the live parental virus or with a gE-deleted BoHV-1 seroconverted to gE after 30 or 40 days (Brum et al 2010b, Weiss et al 2010. Thus, the serological response induced by the recombinant virus is gE-ELISA differentiable from that induced by infection or immunization with the whole, inactivated or live virus.…”
Section: Discussionmentioning
confidence: 96%
“…A gE-deleted BoHV-1 recombinant strain was constructed out a Brazilian BoHV-1.2 isolate (Franco et al 2002a). The recombinant was attenuated for cattle and induced protection against BoHV-1 by intranasal (Franco et al 2002b) and genital challenge (Weiss et al 2010). Recently, a double deletion mutant, defective in the glycoprotein (gE) and thymidine kinase (tk) genes was constructed out of a neurovirulent, well characterized Brazilian BoHV-5 strain (Brum et al 2010a).…”
Section: Discussionmentioning
confidence: 99%
“…Serum samples obtained at different times after virus inoculation or immunization were tested for virus neutralizing (VN) antibodies against BoHV-1 by virus neutralization assay, using the parental virus as the challenge virus (Weiss et al 2010). Titers were expressed as the reciprocal of the highest dilution that prevented virus replication, were transformed in geometric mean titers (GMT -log 2 ) for the calculation of the mean antibody titers of each group (Thrusfield 1986).…”
Section: Animals Virological and Serological Monitoringmentioning
confidence: 99%
“…A gE-negative BoHV-1 strain has been constructed and evaluated regarding to safety, immunogenicity and potential serological differentiation (Spilki et al 2005, Weiss et al 2010. A gE and thymidine kinase (TK) double deletion BoHV-5 recombinant strain was constructed and proposed as a candidate vaccine strain (Brum et al 2010b).…”
Section: Introductionmentioning
confidence: 99%
“…Efforts to produce commercially viable BoHV-1 marker vaccines have long been reported in Brazil ( 19 , 20 ). A gE-negative BoHV-1 strain was constructed and evaluated in terms of safety, immunogenicity and potential serological differentiation ( 21 , 22 ). More recently, a gE and thymidine kinase double deletion BoHV-5 recombinant strain was constructed and proposed as a candidate vaccine strain (14).…”
Section: Introductionmentioning
confidence: 99%