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1990年8～11月,广州市突然暴发登革热流行,发病率为6.40/10万,无实验证实的死亡。引起流行的病原体是登革 IV 型病毒。并从白纹伊蚊和致乏库蚊中分别分离到与流行同型病毒。发病年龄主要为青壮年、临床表现与以往几次流行有所不同,具有心脏损害较多,出血少等特点。流行强度较以往流行年为低,流行仅为局部地区。作者并就传染来源、临床特点及致乏库蚊的媒介作用等进行了讨论。
From August to November 1990, a sudden outbreak of Dengue Fever was reported in Guangzhou City, with a prevalence of 6.40 / 100,000 and no confirmed deaths. The cause of the epidemic is dengue virus type IV. And isolates of the same virus from Aedes albopictus and Culex pipiens pallens. Age of onset is mainly young adults, clinical manifestations and the prevalence of several previous differences, with more heart damage, less bleeding and so on. Popular intensity than the prevalence of the previous year is low, popular only for some areas. The authors also discussed the sources of infection, the clinical features and the role of mediators of Culex pipiens.