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白喉曾经是我省常见的急性传染病。1977年实施计划免疫前,该病发病率波动在1.41/10万～33.20/10万。实施计划免疫后,发病率和死亡率均大幅度卞降。1989年发病率最低为0.005/10万。为掌握免疫后白喉的流行病学特点,我们对以往的资料进行了分析。结果如下。白喉免疫阶段根据白喉免疫制品使用情况分为4个阶段。第1阶段:1950～1962年,白喉免疫制品量极少,主要用于疫区;第2阶段:1963～1977年,实行每年对6月、3岁、7岁儿童免疫接种;第3阶段:1978～1985年,按免疫程序实施计划免疫;第4阶段:1986～1990年,计划免疫实行冷链运转。
Diphtheria was once a common acute infectious disease in our province. Before the implementation of the planned immunization in 1977, the incidence of the disease fluctuated between 1.41 / lakh and 33.20 / lakh. After the implementation of the plan of immunization, morbidity and mortality have dropped significantly. The lowest incidence in 1989 was 0.005 / 100,000. To understand the epidemiological characteristics of diphtheria after immunization, we analyzed past data. The result is as follows. Diphtheria immunization phase based on the use of diphtheria immunization products are divided into four stages. Phase 1: From 1950 to 1962, the amount of diphtheria immunized products was very low, mainly for the epidemic area; Stage 2: from 1963 to 1977, the annual immunization of children aged 6 months, 3 years and 7 years was carried out; Stage 3: From 1978 to 1985, the planned immunization was carried out according to the immunization program; Stage 4: From 1986 to 1990, the planned immunization was implemented with cold chain operation.