Jian-Lin Lei

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A pseudorabies virus (PRV) variant with enhanced pathogenicity has emerged in many vaccinated swine herds in China since 2011. rPRVTJ-delgE/gI, a previously described gE/gI-deleted PRV based on the PRV variant TJ strain, has been shown to be avirulent to pigs yet virulent to sheep. To ensure desirable biosafety, we further deleted the thymidine kinase (TK)(More)
Classical swine fever (CSF) and pseudorabies (PR) are both major infectious diseases of pigs, causing enormous economic losses to the swine industry in many countries. A marker vaccine that enables differentiation of infected from vaccinated animals (DIVA) is highly desirable for control and eradication of these two diseases in endemic areas. Since late(More)
Classical swine fever (CSF) is an economically important disease caused by Classical swine fever virus (CSFV). In order to eradicate CSF, many marker vaccines that allow differentiation of infected from vaccinated animals (DIVA) have been developed. In our previous studies, a DIVA CSF vaccine rAdV-SFV-E2 has been demonstrated to completely protect pigs(More)
Pseudorabies (PR) or Aujeszky's disease (AD), caused by pseudorabies virus (PRV), is an economically important viral disease in many countries. The modified live vaccine Bartha-K61 strain has played an important role in the control of PR in many countries including China. Since late 2011, however, increasing PR outbreaks caused by an emerging PRV variant(More)
Classical swine fever (CSF) is a devastating infectious disease of pigs caused by classical swine fever virus (CSFV). The disease has been controlled following extensive vaccination with the lapinized attenuated vaccine C-strain for decades in China. However, frequent CSF outbreaks occurred recently in a large number of C-strain-vaccinated pig farms in(More)
Classical swine fever (CSF) is an economically important infectious disease of pigs caused by Classical swine fever virus (CSFV). To facilitate the eradication of CSF in endemic areas, a marker vaccine enabling differentiation of infected from vaccinated animals (DIVA) is urgently needed. Previously, we have demonstrated that the DIVA vaccine rAdV-SFV-E2,(More)
Classical swine fever (CSF) is a highly contagious swine disease caused by classical swine fever virus (CSFV). Previously, we demonstrated that rAdV-SFV-E2, an adenovirus-delivered, Semliki Forest virus replicon-vectored marker vaccine against CSF, is able to protect pigs against lethal CSFV challenge. From an economical point of view, it will be beneficial(More)
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