患儿，男，16个月半。因咳嗽半月，不肯行走5天入院。自半月前受凉后一直轻咳。5天来烦躁，咳嗽及排便时常哭吵，躯干前倾、喘气，约10余分钟自动缓解；同时喜抱，不愿站立，扶站时常仅足尖着地，双下肢弯曲，偶有颤抖；平卧时肢体活动尚好。病程中无发热、不吐，双手持物及二 Children, male, 16 months and a half. Cough for half a month, refused to walk for 5 days admitted. Has been light cough since the cold half months ago. 5 days to irritability, cough and defecation often crying, torso leaning forward, gasping, about 10 minutes to automatically relieve; at the same time embrace, do not want to stand, often only foot toe station, legs bent, occasional trembling; Lying physical activity is still good. No fever in the course of the disease, do not spit, hands and two objects