案例1 1998年12月齐齐哈尔市建华区桥西小学某班53名学生在接种流脑菌苗后的1～2天,陆续有11人出现头痛、发烧、咳嗽等反应.经调查,疫苗保存条件良好,注射器为合格产品,接种部位、剂量、途径等均符合要求.现场调查时仍有30多名学生有咳嗽、不适等上感症状.通过观察和临床会诊后判定为接种流脑菌苗后与流行性感冒偶合.在实施接种时,该班已有一定数量的流感潜伏期患者存在是引起这次反应的主要原因. CASE 1 In December 1998, 53 students from a certain class of Qiaoxi Primary School in Jianhua District of Qiqihar City received symptoms of headache, fever and cough one to two days after inoculation of meningococcal vaccine. After investigation, the vaccine preservation conditions Good, the syringe is a qualified product, the site of vaccination, dosage, route, etc. are in line with the requirements.On the spot investigation there are still more than 30 students have cough, discomfort and other symptoms.After observation and clinical consultation judged as meningococcal vaccine Coupled with influenza, the presence of a number of patients with a latent period of influenza during the vaccination was the main cause of this reaction.