白喉是严重危害儿童健康的传染病,我省曾经是流行严重的地区,由于广泛使用白类制剂,使白喉的发病逐年下降,绝大多数地区已控制了白喉的流行,不少县市已多年无病人发生,为了解我省目前少年儿童的白喉免疫状况,以及由于多年免疫接种对人群免疫状况的影响,为我省今后白喉的防治工作提供依据,郑州、开封、洛阳、新乡、焦作、鹤壁、许昌市,午阳、新安、邓县、滑 Diphtheria is a serious infectious disease that endangers the health of children. In our province, it used to be a pandemic. Due to the widespread use of white preparations, the incidence of diphtheria decreased year by year. In most areas, the prevalence of diphtheria has been controlled. Many counties and cities have been for years In order to understand the current diphtheria immune status of children in our province, as well as the impact of years of immunization on the immune status of the population, provide basis for future prevention and treatment of diphtheria in our province. Zhengzhou, Kaifeng, Luoyang, Xinxiang, Jiaozuo, Hebi , Xuchang City, Wuyang, Xin’an, Dengxian, slippery