论文部分内容阅读
为了研究麻疹减毒活疫苗一次接种后免疫效果维持的时间,我们在印江县进行了连续性观察,现将四年观察结果报告如下。材料与方法 1、免疫方案:1977年对全县8个月至7岁的儿童进行普种,8岁至15岁无麻疹病史者作对象接种,以后每年仅对年满8个月龄的新生易感儿及逾期漏种易感者进行接种。已经接种过疫苗的儿童不再接种。所用疫苗株为沪191,全部疫苗由成都生物制品研究所供应。1977年全县平均儿童接种率为94％,1978年后每年新生儿接种率90％左右。
In order to study the duration of the immunization effect of live attenuated measles vaccine after inoculation, we conducted a continuous observation in Yinjiang County. The results of the four-year observation are reported as follows. Materials and methods 1, immunization programs: In 1977 the county of 8 months to 7 years of age children generalized, 8 to 15 years of age without history of measles vaccination, and later each year only to 8 months old students Susceptible children and overdue missed species of susceptible vaccination. Children who have been vaccinated are no longer vaccinated. The vaccine strain used was Shanghai 191, and all vaccines were supplied by Chengdu Institute of Biological Products. In 1977 the county average child vaccination rate was 94%, after 1978, the annual neonatal inoculation rate of about 90%.