我们从1984年本区流行性脑脊髓膜炎(以下简称流脑)病人脑脊液培养中,检出脑膜炎双球菌9例,其中A群7例,B群2例。现将2例由B群菌引起的流脑报告如下。例1.男,10岁。突然发热、头痛伴呕吐一次。3天前有流脑接触史。体检:有低热(T37.8℃),嗜睡状,双前臂和前胸可见少量散在性淤点和淤斑,颈项强直,克氏征弱阳性,布氏征和巴氏征未引出,白细胞13000,中性90％,淋巴10％。脑脊液外观微混,潘氏试验(++),细胞数14200,糖小于40mg％,培养出脑膜炎双球菌,血清分群为B群。例2.男,3岁。咳嗽、发烧1天,呕吐2次,抽搐一次。体检:体温40.6℃,脉搏140次,呼吸28次,神清,前胸可见少量散在性淤点。颈软,心肺听诊无异常。未引出病理征。白细胞22000,中性90％,淋巴 In 1984, 9 cases of meningococcus were detected in cerebrospinal fluid of patients with epidemic cerebrospinal meningitis (hereinafter referred to as “meningitis”) in this area, including 7 cases in group A and 2 cases in group B. Now 2 cases caused by the B group bacteria is reported as follows. Example 1. Male, 10 years old. Sudden fever, headache with vomiting. 3 days ago, history of exposure to meningitis. Physical examination: Low fever (T37.8 ℃), drowsiness, a small amount of scattered forebrain and ecchymosis in both forearms and anterior chest, neck stiffness, weak positive Kirschner, Braun’s syndrome and Papanicolaou not lead to leukocyte 13000 , Neutral 90%, lymph 10%. Cerebrospinal fluid micro-mixing, Pan test (++), the number of cells 14200, sugar less than 40mg%, meningococcus meningitis, serogroup B group. Example 2. Male, 3 years old. Cough, fever 1 day, vomiting 2 times, convulsions once. Physical examination: body temperature 40.6 ℃, pulse 140 times, breathing 28 times, God clear, chest visible a small amount of scattered bruises. Neck soft, cardiopulmonary auscultation no exception. Did not lead to pathological sign. 22,000 leukocytes, 90% neutral, lymph