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遵义地区自实施麻疹疫苗免疫以来，麻疹发病率大幅度下降，１９９０年发病率降至最低为０．６９／１０万。但１９９１年有所回升， １９９２年发病率高达７０．２７／１０万，疫情波及所辖１３个县（市）、 ７１．６５％的区（９１／１２７）、１９．９５％的乡（１５３／７６７）、９．５３％的村或居委会（４８８／５１２１）．＜６岁发病数占总病例数的４１．３８％，７～１４岁病例数占４３．１７％。反映出按照儿童免疫程序８月龄初种和７岁复种麻疹疫苗的工作质量未达到技术要求，造成易感者的积累，导致麻疹的流行。
Since the implementation of measles vaccination in Zunyi, the incidence of measles has dropped significantly, with the lowest incidence in 1990 being 0.69 / 100,000. However, it rose in 1991 with a prevalence rate of 70.27 / 100 000 in 1992. The outbreak spread to 13 counties (cities) under its jurisdiction, 71.65% of districts (91/127) and 19.95% of townships (153) /767),9.53% village or neighborhood (488/5121). <6 years of age accounted for 41.38% of the total number of cases, the number of cases of 7 to 14 years old accounted for 43.17%. This reflects the fact that the quality of work done on the 8-month-old and 7-year-old measles vaccines in accordance with the child immunization program did not meet the technical requirements, resulting in the accumulation of susceptible individuals, leading to the spread of measles.