流行性感冒 (流感 )病毒感染与小儿哮喘发作频率增加及其临床症状加重的关系已得到国内外大多数临床医师的共识。国外一些发达国家于 2 0世纪 70年代初即开展了哮喘患者流感疫苗免疫接种的临床观察及相关性研究。Ｚｉｍｍｅｒｍａｎ等 1994年曾倡议年龄在 6个月以上患有哮喘 The relationship between influenza (influenza) virus infection and increased frequency of asthma attacks in children and its clinical symptoms has been the consensus of most clinicians at home and abroad. Some developed countries in the foreign countries started the clinical observation and correlation study of influenza vaccination in asthma patients in the early 1970s. Zimmerman et al. Proposed in 1994 that they had asthma over 6 months of age