细胞暴露于某些病毒后可分泌出一种能抑制病毒繁殖的物质,称之为干扰素.许多病毒本身就是干扰素的诱导剂,病毒感染过程中所发生的干扰现象使感染过程减轻以至最后终止,这是许多病毒性疾病能以自限的机理.而另一些病毒则不能诱生干扰素,其感染过程常不易自限而呈持续性,可以设想在感染过程中也不能阻止同时合并的其他病毒感染.本文报告一例乙型肝炎患者在病程中二次发生其他病毒感染,以及相互间的干扰现象. Cells exposed to certain viruses can secrete a substance that can inhibit the reproduction of the virus, called interferon .Most of the virus itself is an interferon inducer, the virus infection occurs during the interference process to reduce the infection process and finally Termination, which is a self-limiting mechanism for many viral diseases, while others can not induce interferon, the infection process is often not self-limiting and persistent, it can be assumed that the infection can not prevent the simultaneous merger Other virus infections.This paper reports a case of hepatitis B patients in the course of secondary virus infection, and mutual interference.