徐州市脊髓灰质炎监测和防治对策探讨

SURVEILLANCE AND CONTROL STRATEGY OF POLIOMYELITIS IN XUZHOU

本文通过对我市8年来防治脊灰工作的实践，认为加强基础免疫，提高儿童TOPV的及时接种率，同时每年开展两轮强化免疫活动，可迅速提高并维持人群脊灰抗体水平，阻断脊灰野病毒在人群中的传播。强化免疫策略的落实，使我市脊灰病毒的流行株由1989年爆发时的Ⅰ型野毒株为主转向Ⅱ型疫苗株为主，三型共存的局面。

According to 8 year practice of poliomyelitis prevention in Xuzhou, we found that it may be increased rapidly and maitained population's level to poliomyelitis antibody, and poliomyelitis kept from transmitting in the population by strengthening basic immunization, stepping up immediate vaccination rate of children's TOPV, and carrying out supplementary immunization twice per year. By the way of implementation of supplementary immunication strategy, poliomyelitis epidemic virus strain in Xuzhou was changed from major wild type I in 1989's outbreak to major vaccine typeⅡ with coexistence of type Ⅰ, Ⅱ, Ⅲ.