病毒广泛分布于人类环境之中,人类病毒性疾病种类繁多,流行又广。自Hampar等(1961)在单纯疱疹病毒感染的中国地鼠细胞中,首次发现染色体畸变以来,大量的工作相继证明,在许多病毒性疾病患者以及离体培养的人类细胞中,病毒感染有着强烈的细胞遗传学效应即诱发人类染色体畸变。在某种意义上,我们可以把病毒称为拟辐射因子,而且可能是人类环境中最普遍的一种 Viruses are widely distributed in the human environment. There are a wide variety of human viral diseases and a wide spread. Since Hampar et al. (1961) first discovered chromosomal aberrations in Chinese hamster cells infected with herpes simplex virus, a great deal of work has successively proved that viral infections are intense in many viral disease patients and in vitro cultured human cells. The cytogenetic effect is the induction of human chromosome aberrations. In a sense, we can call a virus a quasi-radiation factor, and it may be the most common type in the human environment.