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许多病毒性疾病都用疫苗进行预防,还有不少新的疫苗正在研究之中。现在,我主要谈谈疫苗使用的现状及将来的评价。脊髓灰质炎小儿麻痹症除了由三型脊髓灰质炎病毒引起外,还可由柯萨奇A_7、A_9、B_2,B_3、B_4、B_5型病毒,埃可1、2、4、6、7、9、11、18、30型病毒和70、71型肠道病毒引起。此外,还有许多病毒可以引起麻痹性质不同、但临床症状相似的麻痹症。目前,人们对上述肠道病毒能引起那些疾病尚未真正了解。但是1975年在保加利亚曾发生71型肠道病
Many viral diseases are vaccinated to prevent, there are many new vaccines being studied. Now, I mainly talk about the current status of vaccine use and future evaluation. Poliomyelitis poliomyelitis can be caused by poliovirus type 3, Coxsackie A7, A9, B_2, B_3, B_4 and B_5 viruses, Echoes 1,2,4,6,7,9, 11, 18, 30 viruses and 70, 71 enterovirus. In addition, many other viruses cause paralytic diseases with similar paralysis but similar clinical symptoms. At present, people have not really understood those diseases that the enterovirus causes. However, in 1975, 71 cases of intestinal diseases occurred in Bulgaria