目前我国和世界均采用皮上划痕接种法预防布病，但该法接种难度大，群众不易接受。保定市卫生防疫站于１９９２年采用布氏菌病活菌苗滴鼻接种法进行了布氏菌病预防接种，取得了满意效果［１］。为了进一步验证布氏菌病活菌苗滴鼻接种效果，作者又选择了新的对象再次进行接... At present, both the Chinese and the world adopt the skin scratch inoculation method to prevent brucellosis, but the method is difficult to vaccinate and the masses are not easy to accept. Baoding Municipal Health and Epidemic Prevention Station in 1992 using brucellosis live vaccine intranasal inoculation vaccination against Brucellosis, and achieved satisfactory results [1]. In order to further verify the effect of intranasal inoculation of viable bacillus vaccine, the author has chosen a new object to be connected again ...