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一项研究表明,过去被人们消灭了的天花如果死灰复燃,那么这种疾病会像接种疫苗之前那样传播迅速。因此,我们还是有必要多了解一些天花的知识。及早发现和迅速干预将会有利于控制天花暴发流行。疫苗接种的终结和天然免疫力的丧失意味着一场天花大流行的影响将是灾难性的。美国专家的近期研究结果显示,天花接种产生的细胞介导免疫作用甚至在35年后仍然可以在一定程度上预防被接种者发生感染。但是尽管这样,而且加上西方国家中存在着约
According to one study, if the smallpox that had been eliminated by human beings resurfaced, the disease would spread rapidly as it had before vaccination. Therefore, we still need to learn more about some smallpox knowledge. Early detection and prompt intervention will be conducive to controlling the outbreak of smallpox. The end of vaccination and the loss of natural immunity mean that the impact of a smallpox epidemic will be catastrophic. Recent studies by U.S. experts showed that the cell-mediated immunity generated by the vaccination of cephalus could still prevent the vaccinated people from becoming infected to some extent even after 35 years. But despite that, plus there is a treaty in the West