为探索各型痢疾患者分离的D组(宋氏)杆菌的致病力,作者对63例不同临床型痢疾病人分离的101株D组杆菌进行了毒力试验。按病情的严重程度将病例分为三组,第一组8例(10株)为亚临床型,此型缺乏明显的临床症状和组织形态学改变,粪便中能分离出病原菌,变应性试验和被动的血球 To explore the pathogenicity of Group D (Song) bacilli isolated from patients with various types of dysentery, the author conducted virulence tests on 101 D-group of Bacillus isolated from 63 patients with different clinical dysentery. According to the severity of the disease will be divided into three groups of patients, the first group of 8 cases (10 strains) for the subclinical type of this lack of significant clinical symptoms and histological changes, stool pathogenic bacteria can be isolated, allergic test And passive blood cells