Analysis on Immune Effect of Measles Supplementany Immunization Activities in Hanyang District of Wuhan in 2009

Objective To explore the strategies and measures of controlling the incidence of measles,and to evaluate the effect of supplementary immunization of measles vaccine. Methods We analyzed the situation of supplementary immunization of measles vaccine among children aged 8 months to 14 years in Hanyang District in October 2009,and then the effect of supplementary immunization was evaluated. Results Totally 63,520 targeted children were surveyed,and 61,241 cases were immunized.The reported vaccination rate was 96.41%,the estimated coverage rate was 94.38%,and the D value(0.02) was less than 0.05.The reported vaccination rate was credible.The coverage rate by rapid assessing was 96.11%,and the coverage rate of the third-party assessment was 94.48%.The differences among any of them and the reported coverage rate were not statistically significant.The reported vaccination rates of resident children and migrant children were 96.37% and 96.57%,respectively,and the difference was not statistically significant.The reported incidence of measles decreased significantly after the supplementary immunization of measles vaccine.The monitoring of measles antibody level showed that the positive rate after the supplementation was 92.26%. Conclusions In order to control and eliminate the incidence of measles,in addition to enhancing the management of the source of infection(patients),the most effective measures are to strengthen the measles vaccination of the susceptible population,to raise the level of population immunity,to build the immune barrier of the target population,to enforce the monitoring of measles epidemic and the measles antibody level of healthy people,and to protect children's health.