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小王:刘老师的孩子得了麻疹.小张:麻疹?孩子都打了预防针,这种病不是已经很少见了吗?!小王:是啊!可是近几年麻疹又在一些地方流行了.小张:那是什么原因呢?小王:听卫生防疫站的的同志说,主要原因是有些家长认为麻疹已不再流行了,所以近几年就没有让孩子打预防针.另外,麻疹疫苗本身有大约百分二到三的“失效率”.从理论上讲,人群中必须要有百分之九十八以上的人都接受疫苗注射,才能够打断一种传染病的传播.小张:这么说,要保证麻疹在社会上不流行,每一个人都必须打麻疹预防针.小王:是啊!
Xiao Wang: Mr. Liu’s children got the measles. Zhang: measles? Children are playing a needle, the disease is not already rare ?! Wang: Yes! But in recent years, measles epidemic in some places Xiao Zhang: What is the reason? Wang: Hear the health and epidemic prevention station comrades said that the main reason is that some parents think the measles is no longer popular, so in recent years did not let the children play a vaccination.In addition, The measles vaccine itself has a “failure rate” of about 2 to 3. In theory, more than 98% of the population must be vaccinated to interrupt an infectious disease Xiao Zhang: So to ensure that measles in the community is not popular, everyone must fight measles. Wang: Yes!