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流行性乙型脑炎活疫苗(以下简称乙脑活疫苗),是我国近年来研制成功的一种新的生物制品,去年的观察使我们体会到该疫苗使用安全,效果良好。为了探讨该活疫苗的免疫持久性,我们在东莞县结合开展预防乙脑工作进行乙脑活疫苗免疫后第二年的效果观察。此项工作在上海生物制品研究所的支持、协助和指导下,在东莞县三间人民医院和各公社卫生院的配合协作下,取得预防乙脑的良好效果,深受广天贫下中农的欢迎。现将乙脑活疫苗免疫后第二年的预防效果调查情况总结如下:
The live JE vaccine (hereinafter referred to as JE live vaccine) is a new biological product successfully developed in recent years in our country. Last year’s observation made us realize that the vaccine is safe to use and works well. In order to investigate the immune persistence of the live vaccine, we carried out in Dongguan County, JE prevention and treatment of JE live vaccine immunization after the second year of observation. With the support, assistance and guidance of the Shanghai Institute of Biological Products, this work achieved good results in preventing JE with the cooperation of the three people’s hospitals in Dongguan County and the communes and public hospitals, and was well received by the poor middle peasants in Guangtian County . Now JE live vaccine in the second year after the preventive effect of the survey are summarized as follows: