本文203例患者由局部流行和散发的住院(87例)和非住院(116例)病例组成,均经临床学、流行病学、血清学和病原学检查证实,明确诊断为鼠型(地方性)斑疹伤寒。发病年龄最小者为9个月,最大为62岁。其中以10～39岁中小学生和青壮年最多,占全部病例的84.9％。发病时间均在8～11月,9月下旬至10月上旬形成流行最高峰。全部病例来自农村。 The 203 patients in this study were composed of inpatients (87 cases) and non-hospitalized patients (116 cases), both of which were endemic and scattered. All of them were confirmed by clinical examination, epidemiology, serology and etiology. )typhus. The youngest was 9 months and the oldest was 62 years old. Among them, 10 to 39-year-old primary and secondary students and young adults up to 84.9% of all cases. Incidence of time in 8 ~ November, late September to early October formed the peak of the epidemic. All cases came from rural areas.