在实验室内对流行区分离到的伤寒杆菌进行了理化因子抗力测定。结果发现,所测氯霉素耐药株对理化因子的耐受力略强于氯霉素敏感株,但因测试菌株少,尚不足以作规律性结论。 Physiological and chemical resistance tests were carried out in laboratories against Salmonella typhi isolated from endemic areas. The results showed that the resistance of the tested chloramphenicol resistant strains to physical and chemical factors was slightly stronger than that of chloramphenicol sensitive strains, but the test strains were few and not enough to make regular conclusions.