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本实验室过去发表的论文指出:在25天的小白鼠皮下注射标准剂量的流行性乙型脑炎病毒(以下简称脑炎病毒)的同天或前一天皮下一次注射5％巴豆油(与石臘油混合)能明显地减低小白鼠的死亡率。目前的实验是:探讨多次注射巴豆油对小鼠感染标准剂量的脑炎病毒后死亡率的影响。从预先的实验发现:如用水剂稀释巴豆油成乳剂状态,其所产生的保护性效应较用油稀释者为大,故在本篇论文中所有实验均采用巴豆油-牛肉汤乳剂。
In our previous paper published in our laboratory, we noted that on the same day or the day before the standard dose of Japanese encephalitis virus (hereinafter referred to as encephalitis virus) subcutaneously injected in mice of 25 days, subcutaneous injection of 5% croton oil Wax oil mixture) can significantly reduce the mortality of mice. The current experiment is to investigate the effect of multiple injection of croton oil on the mortality of mice infected with a standard dose of encephalitis virus. It has been found from previous experiments that if croton oil is diluted with an aqueous solution into emulsion, its protective effect is greater than that of oil dilution. Therefore, all experiments in this paper use croton oil - beef soup emulsion.