Abstract

This study compared protection of pigs against lethal Pseudorabies virus (PrV) infection induced by a single injection of various quantities of Sindbis virus-derived plasmids encoding PrV glycoproteins gB, gC and gD. Pigs were injected with 340, 68 or 13 μg of each plasmid. Few immune differences were observed after DNA injection and more importantly the pigs of the three groups were equally protected against virulent PrV infection. Single-shot injection of 13 μg of each PrV glycoprotein encoding Sindbis virus-derived plasmid is able to effectively protect pigs from PrV infection.

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