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(1977年10月26日～1979年10月26日) 自从索马利南部Merca镇一个居民罹患天花以来,到今天整整两年。这个人是世界上最后一例地方性天花病例。证实天花消灭的基本标准为,发生1例天花病例后,应用足够敏感的监测系统检查病例,必须经过两年没有发生1例天花病例。这个标准现在已经达到。这一情况将提交全球消灭天花证明委员会专家组严格审查。委员会专家组的报告将是1980年5月世界卫生组织大会文件的基础。确认天花消灭将意味着正式认可的常规种痘和种痘证书均无必要。种痘引起并发症的危险性显然大于获得天花的危险性,后一种危险性现在已完全消失。
(26 October 1977 - 26 October 1979) Two full days have passed since a smallpox was raised in the town of Merca, in southern Somalia. This man is the last case of endemic smallpox in the world. The basic standard confirming the elimination of smallpox is that after one case of smallpox occurs, the case should be examined using a surveillance system that is sufficiently sensitive that one case of smallpox must not occur in two years. This standard has now been achieved. This situation will be submitted to the Global Panel on CEAC for rigorous scrutiny. The report of the panel of experts of the Commission will form the basis of the document of the May 1980 World Health Assembly. Confirming that the elimination of smallpox will mean that routine vaccination and vaccination certificates that are officially recognized are not necessary. The risk of complication from vaccination is clearly greater than the risk of acquiring smallpox, and the latter has now completely disappeared.