Efficacy of an intranasal immunization with gEgC and gEgI double-deletion mutants of Aujeszky's disease virus in maternally immune pigs and the effects of a successive intramuscular booster with commercial vaccines.

Abstract excerpt

In this study, an intranasal immunization strategy was set up in maternally immune pigs in order to protect them not only clinically but also virologically. Two genetically engineered Aujeszky's disease virus (ADV) strains, Kaplan gE-gI- and Kaplan gE-gC-, were used for intranasal immunization. Both strains were safe for 4-week-old pigs. A single intranasal inoculation of 10(6.0) TCID50 of Kaplan gE-gI- and...

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