The result shows that there is a remarkable difference between the inoculating rates and incidences of corresponding infectious disease of children before and after th...

• 结果表明:保偿制实施前后儿童计划免疫接种率及相应传染病发病率有显著差异;实施计划免疫保偿制,可降低儿童相应传染病的发病率。