许多国家已经报道小肠结肠炎耶尔森氏菌 O3血清型生物4型、O8血清型生物1型、O9血清型生物2型和 O5∶27血清型生物2型菌株是引起人胃肠炎及导致败血症或继发性后遗症(如关节炎等)的病原菌。在日本,已从临床病例及健康动物中分离到 O3血清型生物4型菌株。但有学者从临床和健康猪体内分离到一种属于 O3血清型生物3型的小肠结肠炎耶尔森氏菌,该菌株发酵乳糖、木糖和山梨糖,VP 反应阴性。本文作者从临床 Many countries have reported that Yersinia enterocolitica O3 serotype 4, O8 serotype 1, O9 serotype 2 and O5: 27 serotype 2 strains are responsible for causing gastroenteritis and causing Sepsis or secondary sequelae (such as arthritis, etc.) pathogenic bacteria. In Japan, O3 serotype 4 strains have been isolated from clinical cases and healthy animals. However, some scholars have isolated Yersinia enterocolitica belonging to the O3 serotype 3 genotype from clinical and healthy pigs that ferment lactose, xylose and sorbose and have a negative VP response. The author from the clinical