They characterized this retrovirus as the first known human lentivirus based on its morphological, biochemical and immunological properties.

他们此病毒的特点是第一个已知的人类慢病毒根据其形态，生化和免疫学性质。

This lays the foundation for the further research in gene therapy and can also help identify lentivirus titer.

构建成功的新型慢病毒载体为今后的基因治疗奠定了基础，也为慢病毒滴度的确定提供了一种新的可能。

Previous studies showed the long terminal repeat (LTR) of lentivirus has close relation with the ability of virulence and replication.

有研究认为病毒基因组长末端重复序列LTR与病毒的毒力和复制能力直接相关。