例 1.男性 ,4 7岁。因头痛、发热半年 ,呼之不应 4d于2 0 0 1- 0 1入院。患者无诱因出现头痛、发热 (体温不详 ) ,在当地医院诊为“结脑” ,给予抗痨、脱水等对症治疗半年 ,病情时好时坏。入院前 4d出现高热 ,体温持续在 39℃以上 ,继之出现呼之不应而转入我院。既往有静脉吸毒 Example 1. Male, 47 years old. Due to headache, fever for six months, call should not be 4d admission in 2000. No incentive for patients with headache, fever (body temperature unknown), the local hospital as “knot brain”, given anti-tuberculosis, dehydration and other symptomatic treatment for six months, the condition of good and bad time. 4d before admission, fever, body temperature continued at above 39 ℃, followed by the call should not be transferred to our hospital. Past intravenous drug use