目前,人类对病毒感染性疾病的认识相当有限。疾病的病原学理论在19世纪末才刚形成,病理学家相信对任何一种感染性疾病都可发现其致病微生物,而病毒直到1892年才被Dmitri从受感染致病的烟草中发现。有观点认为,只有当宿主与病毒间的关系发生变化时才会致病,一般情况下则处于和平共处的状态。不同病毒具有不同的生命周期,有的可快速致 At present, human understanding of viral infectious diseases is quite limited. The theory of the etiology of the disease was not formed until the late 19th century. Pathologists believe that pathogenic microorganisms can be found in any of the infectious diseases, and the virus was not detected by Dmitri from infected tobacco in 1892. The view is that disease will only occur when there is a change in the relationship between the host and the virus, and under normal circumstances it will be in a state of peaceful coexistence. Different viruses have different life cycles, and some can be rapidly induced