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湛江地区部分县市在1980～1981年发生过登革热大流行,我们于1982年在已无病例报告的旧疫区进行病原学、血清学监测,现将本实验过程及监测结果摘要报道如下:1、为了观察登革病毒在旧疫区人群传播的动态,在徐闻县医院门诊采集发热原因不明的病人血清32份,同时在非流行区采集健康人群血清50份,用放射免疫法测定血清中的登革病毒抗原,其中旧疫区病人获得六例阳性,阳性率为18.8%,而非流行区血清
In some counties and cities in Zhanjiang district, a dengue epidemic occurred in 1980-1981. We conducted etiological and serological surveillance in the old epidemic areas that had no case reports in 1982. The summary of the present experimental process and monitoring results are reported as follows: 1 In order to observe the spread of dengue virus in the population of old epidemic area, 32 patients with unknown causes of fever were collected in Xuwen County Hospital Outpatient Department, and 50 healthy people were collected in non-endemic area. Serum samples were determined by radioimmunoassay Dengue virus antigen, of which the old epidemic area patients were positive in six cases, the positive rate was 18.8%, while non-endemic sera