6月男婴,以发热三天为主诉入院,伴呕吐、拒乳。查体:体温38℃,神志恍惚,全身皮肤散在淤点、淤斑,前囟稍紧张,颈软,心肺无殊,病理反射未引出。脑脊液中白细胞6400/mm~3,中性62%,淋巴18%,内皮20%,糖34mg/dl,蛋白265mg/dl,氯化物710mg/dl,皮肤淤点涂片镜检未见细菌,按流脑给青霉素、氨苄青霉素治疗,住院第三天复查脑脊液白细胞784/mm~3,中性63%,淋巴3%,内皮7%,但体温不降,出现抽搐, June baby boy, with fever for three days based on admission, with vomiting, refusing milk. Physical examination: body temperature 38 ℃, trance, systemic skin scattered in the petechia, ecchymosis, anterior fontanelle a little nervous, neck soft, no special cardiopulmonary, pathological reflex did not lead. Cerebrospinal fluid white blood cells 6400 / mm ~ 3, 62% neutral, lymphatic 18%, endothelium 20%, sugar 34mg / dl, protein 265mg / dl, chloride 710mg / dl, Cerebrospinal fluid to penicillin, ampicillin treatment, recheck the third day of hospital cerebrospinal fluid leukocytes 784 / mm ~ 3, 63% neutral, lymphatic 3%, endothelium 7%, but the body temperature does not drop, convulsions,