1983年3—4月上旬,银川地区上感病人增多,经病原学、血清学、流行病学调查,证实是一次乙型流感的流行,现报告如下。流行简况根据我站在银川市第二及第三人民医院流感监测的情况表明,3月份门诊工作量为13,387例,其中初诊高热上感病人有1,515例,占11.32%;银川市第二毛纺织厂职工及 In early March-April 1983, there was an increase in the number of patients with influenza in Yinchuan. The etiology, serology and epidemiological investigation confirmed that it was a pandemic of influenza B, and the report is as follows. Epidemic profile According to the influenza surveillance I stood in the Second and Third People’s Hospital of Yinchuan City, outpatient workload was 13,387 cases in March, of which 1,515 cases were newly diagnosed with fever, accounting for 11.32%; Yinchuan Second Wool Textile Factory workers and