解读病毒性传染病的六大特点

病毒性传染病具有普遍性、依赖性、适应性、恶毒性、顽固性和难预防等六大特点.病毒性传染病分布广泛,种类繁多,病毒可以引起全身各个组织器官的病变;病毒必须依赖于宿主细胞,在其中复制和增殖,病毒具有"嗜袭性",进入人体后,各得其所,赖以生存.病毒具有高度变异性,变异株可以适应各种环境,有益于自身的延续;病毒可以引起全身各系统的病变,其中对于中枢神经系统的损害往往是致命性的;病毒具有不同的变种,随时可能发生不同的变异,难以研制出普遍有效的疫苗.

The Sextuple Characteristics of Virus Contagion

Virus contagion possess six characteristics of universality?relier?adaptability?malicious?pertinacity and difficult to prevent etc. Virus contagion branch far and wide,class various,virus can cause pathological changes in each organize whole body;virus must lie on hostel cell,reproducing and proliferating in cell,Virus be provided with "bloodthirsty" , virus get into human body,each is in his proper place,hold on in a place. Virus be provided with highly variability,variancious individual plant may adapt multifarious environment,be beneficial to autogenous multiply;The damage in nerve center system caused by virus is frequently fatal;Virus possess different mutation,at any moment probably take place differentiation,difficult to develop effective vaccine.