呼吸道感染是儿童时期的常见病,反复的呼吸道感染多由病毒感染所致,与机体的免疫力低下有关。转移因子(TF)在提高机体免疫力、治疗反复呼吸道感染方面有较好的疗效。但以往多采用注射剂型的转移因子,临床应用较为不便。最近我们应用北京兴华生物新技术中心研制生产的口服猪脾转移因子治疗了30例反复呼吸道感染的患儿,取得了较好的 Respiratory tract infection is a common childhood disease, repeated respiratory infections caused by more than the virus infection, and the body’s immune system related to low. Transfer factor (TF) in improving the body immunity, the treatment of recurrent respiratory tract infection has a good effect. However, in the past, the use of injection-type transfer factor, clinical application more inconvenient. Recently we applied Beijing Xinghua Biological Technology Center developed oral spleen transfer factor treatment of 30 patients with recurrent respiratory tract infections and achieved better