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We herein describe the partial nucleotide sequencing and phylogenetic analysis of the B2L gene of seventeen Brazilian orf viruses (ORFV). Seventeen viruses were recovered from outbreaks of contagious ecthyma in sheep and goats in four states in Southern and Northeast country, and three from commercial vaccines. Most analyzed viruses were associated with outbreaks of classical contagious ecthyma, with...
The adjuvant effect of porcine interferon alpha (pIFN-α) was examined in swine vaccinated with a replication-defective adenovirus containing foot-and-mouth disease virus (FMDV) A24 capsid and 3C proteinase coding regions (Ad5-A24). Groups of swine were inoculated with either high or low doses of Ad5-A24 in the presence or absence of Ad5-pIFNα or with a control Ad5 and challenged by intradermal inoculation...
We have previously demonstrated that swine vaccinated with one dose of a replication-defective human adenovirus type 5 (Ad5) vector containing the capsid and 3C proteinase coding regions of foot-and-mouth disease virus (FMDV) were protected when challenged 7 days later with homologous virus. In the current study, we have extended this approach to cattle, the most economically important animals susceptible...
We have previously shown that swine inoculated with recombinant, replication-defective human adenovirus type 5 containing the porcine interferon alpha gene (Ad5-pIFNα) are completely protected when challenged 1 day later with virulent foot-and-mouth disease virus (FMDV). In the current study, we examined the duration of protection afforded swine by Ad5-pIFNα and the ability of a combination of Ad5-pIFNα...
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