患儿王××,男, 5岁。于1979年10月1日中午开始发热,微咳,晚间食梨后出现呕吐。因患儿精神萎靡、嗜睡于当晚急诊入院。体检:体温39.6℃。脉搏128次。血压86/60。嗜睡,无紫绀,全身皮肤无出血点及皮疹。腋下可扪及黄豆大小淋巴结。瞳孔等大等圆,对光反应存在。颈 Children Wang × ×, male, 5 years old. Beginning at noon on October 1, 1979 fever, cough, eaten vomiting after eating pear at night. Because of children’s apathetic, lethargy in the evening emergency admission. Physical examination: body temperature 39.6 ℃. Pulse 128 times. Blood pressure 86/60. Drowsiness, no cyanosis, systemic skin without bleeding and rash. Armpit palpable and soybean size lymph nodes. Pupil and other large round, light reaction exists. neck