患者女,70岁,于1999年7月7日出现无明显诱因发热,发热以下午和夜间为著,体温在38℃～39℃之间,初始伴有畏寒。入院时体查:Ｔ39℃,余未发现其它异常,按“上呼吸道感染”处理给予庆大霉素、病毒唑、复方氨基比林治疗,发热很快控制,住院一天主动要求出院。2天后又发热,于1999年7月 Female, 70 years old, on July 7, 1999 there was no obvious incentive to fever, fever in the afternoon and night as the body temperature between 38 ℃ ~ 39 ℃, initially accompanied by chills. Physical examination at admission: T39 ℃, I found no other abnormalities, according to the “upper respiratory tract infection” to give gentamicin, ribavirin, compound aminopyrine treatment, fever control quickly, hospitalized one day to take the initiative to request discharge. After 2 days and fever, in July 1999