Inactivation of the thymidine kinase gene of a gI deletion mutant of pseudorabies virus generates a safe but still highly immunogenic vaccine strain

Department of Virology, Central Veterinary Institute (CDI), Houtribweg 39, 8221 RA Lelystad, The Netherlands In an earlier report, we described the construction of the genetically engineered pseudorabies virus strain 2.4N3A which does not express glycoprotein gI. Although this strain showed a strong...

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