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自麻疹活疫苗广泛应用以来,麻疹发病率大幅度下降,打破了以往麻疹流行的周期性规律。但自1968年以来,国内外均有麻疹发病率回升趋势,个别地区并出现麻疹暴发,铁路系统也有类似情况。闵此,麻疹活疫苗免疫持久性和麻疹的血清流行病学监测问题引起了广泛重视。一年来南京铁道医学院卫生系与南京铁路卫生防疫站为探讨以上问题,协作进行了初步
Since the widespread use of live measles vaccine, the incidence of measles has dropped dramatically, breaking the cyclical pattern of previous measles epidemics. However, since 1968, there has been a rising trend of the incidence of measles both at home and abroad. In some areas, there has been a measles outbreak and there has been a similar situation in the railway system. Min, measles vaccine live immunity and measles epidemiological surveillance of the epidemic caused widespread attention. In the past year, Nanjing Railway Medical College Department of Health and Nanjing Railway Health and Epidemic Prevention Station to explore the above issues, the collaboration conducted a preliminary