某部位于华北某地一深山区,近年来每进入8、9月份,类似“感冒”的病人剧增,病程可长达1～2个月,国庆节前后大多逐渐痊愈,次年同季复发。经调查属花粉症,报告如下。(一)发病情况及临床体征1988年10月～1989年10月,该部309人中63人发病,发病 A department located in a deep mountainous area in North China, in recent years, each entered in August and September, a similar increase in the number of patients with “cold”, duration of up to 1 to 2 months, most gradually recovered before and after the National Day, the following year the same quarter relapse. The investigation is a hay fever, the report is as follows. (A) the incidence and clinical signs From October 1988 to October 1989, the Ministry of 309 people in 63 of the disease, the incidence