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1982年10月至1983年元月笔者在周至县选择了两个出血热重发病大队,进行了植物血凝素(简称PHA)预防出血热的实验研究,取得了一定的预防效果。为了提高结论的可靠性,1983年10月到1984年元月在咸阳市出血热疫区又选择了两个重发病队进行了重复实验,结果与1982年基本一致。
From October 1982 to January 1983, the author selected two severe hemorrhagic fever units in Zhouzhi County and conducted experimental studies on the prevention of haemorrhagic fever with phytohemagglutinin (PHA) for a long time and achieved some preventive effects. In order to improve the reliability of the conclusion, two repeat cases were selected again from October 1983 to January 1984 in Xianyang hemorrhagic fever epidemic area, and the results were basically consistent with those in 1982.