流行性乙型脑炎灭活疫苗（以下简称疫苗），已列入免疫计划，疫苗接种面大，引起过敏性休克的报道少见。本院发生1例，现报道如下：姚某，男，9岁。因注射疫苗后神志不清1小时急诊入院。患儿子1996年4月8日下午，在入院前小时因左上臂外侧三角肌附着处注射疫苗1毫升（上海生物 Epidemic encephalitis inactivated vaccine (hereinafter referred to as vaccine), has been included in the immunization program, a large vaccination coverage, causing anaphylactic shock reports rare. One case occurred in our hospital, are reported as follows: Yao, male, 9 years old. Infected by emergency 1 hour after vaccination. Suffering from his son In the afternoon of April 8, 1996, 1 ​​ml of vaccine was injected into the deltoid muscle outside the left upper arm hours before admission