西安地区近20多年来未见斑疹伤寒发生的报道;病原学分离工作亦未见进行。1985 9—12月,西安某医院职工、家属和学生中发现鼠型斑疹伤寒患者37例,男:女=1:3:8。年龄为14～45岁,94.9%为青年人。病例集中分布在地势低洼、潮湿、环境卫生差、鼠密度较高的六个单身宿 No reports of typhus occurred in Xi’an in the past two decades or so; and etiological separation has not been conducted. From September to December 1985, 37 cases of murine typhus were found among workers, relatives and students in a hospital in Xi’an, male and female = 1: 3: 8. Aged 14 to 45 years old, 94.9% of young people. Cases concentrated in low-lying, humid, poor sanitation, rat density higher six single sink