FIV

例句：

1. 1.病毒
   virus
2. 2. 病毒学
   virology
3. 3. 病毒性疾病
   viral disease
4. 1. The FIV virus is responsible for the development of AIDS in humans.
   FIV病毒是人类艾滋病发展的原因。
5. 2.Viruses are a major cause of human disease.
   病毒是导致人类疾病的主要原因。
6. 3.Researchers are working on developing a vaccine against the FIV virus.
   研究人员正在研究开发一种针对FIV病毒的疫苗。