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我国的人均寿命在半个世纪中翻了一番,从1949年的35岁到现在70岁左右,儿童发病和死亡的急剧减少是我国人均寿命大大提高的重要原因,其中最能体现预防为主方针的“免疫预防”发挥了十分重要的作用。
The average life expectancy of our country has doubled in half a century. From the age of 35 in 1949 to the present age of about 70, the sharp decline in the incidence and death of children is an important reason for the significant increase in the average life expectancy of our country, of which the prevention is the most important The principle of “immunoprophylaxis” has played a very important role.