患儿8岁,2005年1月3日在左上臂三角肌内注射流行性感冒(流感)裂解疫苗0·5ml(浙江天元生物药业股份有限公司生产,批号20040910(150),有效期2005-09-09)。1月4日晚双大腿内侧出现“针尖样”出血点,之后双下肢出血点逐渐增多、增大,蔓延至上肢、躯干,部分区域形成片状。1月10日出 Children aged 8 years, on January 3, 2005 in the left upper quadrant deltoid muscle injection influenza (flu) split vaccine 0.5ml (Zhejiang Tianyuan Bio-Pharmaceutical Co., Ltd. production, batch number 20040910 (150), the validity of 2005-09 -09). On the evening of January 4, “needle-like” bleeding occurred on the medial side of both thighs. Bleeding points of both lower extremities gradually increased, enlarged and spread to the upper extremities, trunk and some areas to form flakes. January 10 out