随着社会经济的发展,我国流动人口数量逐年增长,流动儿童的数量也随之上升。由于多元因素的作用,流动儿童与当地儿童预防接种水平存在极大差距,甚至削弱了当地人群的免疫屏障,导致流入地疫苗针对传染病发病率上升。因此,加强流动儿童的管理,已成为当前预防接种工作急需解决的问题。 With the social and economic development, the number of floating population in our country has been increasing year by year, and the number of migrant children has also risen. Because of multiple factors, there is a big gap between the vaccination level of migrant children and local children, even weakening the immunization barrier of the local population, resulting in an increased incidence of infectious diseases in inflow areas. Therefore, strengthening the management of migrant children has become an urgent issue to be solved in vaccination.