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为探讨麻疹疫苗再免疫的效果，对珠海市香洲区按免疫程序8月龄、3岁、7岁进行麻疹疫苗（MV）接种的3岁、7岁儿童共196人，进行了再免疫效果评价。结果表明：再免疫前、后麻疹抗体阳性率分别为96．43％和100％，几何平均滴度（GMT）分别为1：805和1：4557。再免疫成功率与再免疫前抗体滴度呈负相关，再免疫前抗体滴度＜1：200、1：200、1：800、1：3200的，再免疫成功率分别为100％、97.06％、94．07％、71.88％；3岁与7岁间再免疫成功率的差异无显著的统计学意义．初免（8月龄）后2年、再免疫（3岁）后4年，麻疹抗体滴度均处在低抗体水平，显示麻疹再免疫具有重要的意义，再免疫年龄3岁比较合适．
In order to explore the effect of re-immunization of measles vaccine, re-immunization was evaluated on a total of 196 children aged 3 and 7 years old who were immunized with measles vaccine at 8 months, 3 years and 7 years of age in Xiangzhou District, Zhuhai City. . The results showed that the positive rates of measles antibody before and after re-immunization were 96.43% and 100%, respectively. The geometric mean titers (GMTs) were 1: 805 and 1: 4557, respectively. The success rate of re-immunization was negatively correlated with the antibody titer before re-immunization. The antibody titer <1: 200, 1: 200, 1: 800 and 1: 3200 before reimmunization was 100% and the re-immunization success rates were 97.06% , 94.07% and 71.88% respectively. No significant difference was found in the success rate of re-immunization between 3 years and 7 years old. Measles antibody titer at 2 years after initial immunization (8 months old), 2 years after immunization (3 years old) and 4 years after immunization (3 years old) showed that immunization with measles was of great significance.