近十多年来,我区白喉呈散在发生,1977年秋在固始、光山两县突然发生局部流行。为了解人群对白喉的易感性和预防接种的质量,1978年6至9月,我们选择固始县的疫区和罗山县的非疫区进行了锡克氏试验,现将调查结果报告如下。调查方法一、对象:疫区和非疫区均为出生后6 Over the past decade or so, diphtheria in our area was scattered. In the autumn of 1977, there was a sudden epidemic in Gushi and Kwangsan counties. In order to understand the crowd’s susceptibility to diphtheria and vaccination quality, from June to September 1978, we selected Sich’s test in the epidemic areas of Gushi County and the pest free areas in Luoshan County. The findings are reported as follows . Methods of investigation First, the object: both epidemic and non-epidemic areas are after birth 6