男孩 ,3岁。因发热 4天入院。入院前 4天始发热 ,体温在 38 5℃～ 39 5℃之间 ,热盛时阵阵烦躁 ,无寒颤 ,不惊、不咳、不吐 ,大小便正常。既往体健 ,否认肝炎史 ,否认药物过敏史。体检 :Ｔ37 6℃ ,全身皮肤无皮疹 ,浅表淋巴结不肿大。咽充血 ( ) ,双侧扁桃体Ⅰ° ,无脓性分泌物 Boy, 3 years old. 4 days due to fever admission. 4 days before admission, fever, body temperature between 38 5 ℃ ~ 39 5 ℃, hot thirsty bursts of irritability, no chills, no shock, no cough, no spit, normal urine. Past physical health, to deny the history of hepatitis, denied the history of drug allergies. Physical examination: T37 6 ℃, no skin rash, no swelling of superficial lymph nodes. Pharyngeal congestion (), bilateral tonsil Ⅰ °, no purulent secretions