本文报道的21例病儿(婴幼儿,学步的小孩,学龄期儿童)结果,发现慢性或急性呼吸阻塞性疾病与细小病毒B19感染有关。例如:慢性阻塞性支气管炎/毛细支气管炎,15名婴儿(3～11个月);急性喘鸣性喉痉挛,3例(18～37个月);急性哮喘发作:病儿有支气管哮喘史,是由感染或者异位外源性支气管哮喘所引起,3例(18～37个月)。病人在急性支气管炎早期作体格检查,而喘鸣性喉痉挛或哮喘性发作的第一天作体格检 In this paper, 21 cases of infants (infants, toddlers, school-aged children) were reported and found that chronic or acute obstructive airway disease was associated with parvovirus B19 infection. For example: chronic obstructive bronchitis / bronchiolitis, 15 infants (3 to 11 months); acute wheezing laryngospasm in 3 cases (18 to 37 months); acute asthma attack: the sick child has a history of bronchial asthma , Caused by infection or ectopic extrinsic bronchial asthma, 3 (18-37 months). Patients in early acute bronchitis for physical examination, wheezing laryngospasm or asthma attack the first day of physical examination