急性呼吸道感染(ARI)是儿童时期最常见的疾病,其中肺炎对小儿生命威胁最大,本研究系根据卫生部肺炎防治规划要求,借鉴国外根据单纯症状体征作为诊断下呼吸道感染(LRI)诊断指标,制定出适合我国儿童肺炎早期诊断标准,使广大初级保健 Acute respiratory infection (ARI) is the most common childhood disease, of which pneumonia has the greatest threat to children’s life. According to the Ministry of Public Health’s plan for pneumonia prevention and control, this study draws on the experience of foreign countries in diagnosing lower respiratory tract infection (LRI) To develop an early diagnosis of pneumonia for children in our country, so that the majority of primary health care