肺炎为儿童最常见的呼吸道疾病,主要表现为咳嗽、发热、气促、紫绀及肺部细湿罗音。其病原复杂,但多以细菌、病毒、支原体感染为主。婴幼儿时期是易患肺炎的高峰年龄阶段,恰恰婴幼儿免疫功能较低下,不利肺炎恢复,如在治疗肺炎时加用免疫增强剂,能促进肺炎早日康复。胸腺因子是 Pneumonia is the most common respiratory disease in children, mainly manifested as cough, fever, shortness of breath, cyanosis, and fine wet rales in the lungs. Its pathogenic complex, but more bacteria, viruses, mycoplasma infections. Infants and young children is susceptible to pneumonia at the peak age, it is precisely the lower immune function in infants and young children, adverse pneumonia recovery, such as the use of immune enhancers in the treatment of pneumonia, can promote the early recovery of pneumonia. Thymus factor is