biostudies-literatureWang JProgram for Independence and Innovation in Agricultural Sciences of Jiangsu Provincethe Natural Science Foundation of Jiangsu Provincethe Special Fund for Agro-Scientific Research in the Public Interest277https://www.ebi.ac.uk/biostudies/studies/S-EPMC5142131biostudies-literatureUnknown12(1)<h4>Background</h4>Since the end of 2011 an outbreak of pseudorabies affected Chinese pig herds that had been vaccinated with the commercial vaccine made of Bartha K61 strain. It is now clear that the outbreak was caused by an emergent PRV variant. Even though vaccines made of PRV Bartha K61 strain can confer certain cross protection against PRV variants based on experimental data, less than optimal clinical protection and virus shedding reduction were observed, making the control or eradication of this disease difficult.<h4>Results</h4>An infectious clone of PRV AH02LA strain was constructed to generate a gE deletion mutant PRV(LA-A^B) strain. PRV(LA-A^B) strain can reach a titer of 10^8.43 TCID₅₀ /mL (50% tissue culture infectious dose) on BHK-21 BMC veterinary researchAn inactivated gE-deleted pseudorabies vaccine provides complete clinical protection and reduces virus shedding against challenge by a Chinese pseudorabies variant.PMC5142131201303046CX(12)3061BK20131334Liu YQiao YHou JXu MGu YLiu CGuo RWang JWang ZfalseAn inactivated gE-deleted pseudorabies vaccine provides complete clinical protection and reduces virus shedding against challenge by a Chinese pseudorabies variant.<h4>Background</h4>Since the end of 2011 an outbreak of pseudorabies affected Chinese pig herds that had been vaccinated with the commercial vaccine made of Bartha K61 strain. It is now clear that the outbreak was caused by an emergent PRV variant. Even though vaccines made of PRV Bartha K61 strain can confer certain cross protection against PRV variants based on experimental data, less than optimal clinical protection and virus shedding reduction were observed, making the control or eradication of this disease difficult.<h4>Results</h4>An infectious clone of PRV AH02LA strain was constructed to generate a gE deletion mutant PRV(LA-A^B) strain. PRV(LA-A^B) strain can reach a titer of 10^8.43 TCID₅₀ /mL (50% tissue culture infectious dose) on BHK-21 2016-01-01T00:00:00Z2016 Dec2025-04-19T19:56:45.509Z2019-03-27T02:30:58ZS-EPMC51421312792336510.1186/s12917-016-0897-z