Fig. 5From: Safety and immunogenicity of an attenuated Chinese pseudorabies variant by dual deletion of TK&gE genesSafety and efficiency of TK&gE dual deletion mutant virus for piglets a Safety for 1-day-old PRV gB antibody negative piglets were tested. b Safety for 1-day-old PRV gB antibody positive piglets were tested. c A total of 24 28~ 35-day-old PRV gB antibody negative piglets were randomly divided into six groups of A-F. One week post vaccination, groups A, B, C, D and E were challenged intranasally with 2LD50 PRV AH02LA per piglet. Group F piglets were not challenged. The survival rates of these groups over the 14 days post challenge are shown. I.N.: intranasally; I.M.: intramuscularlyBack to article page