小儿肺炎是儿科常见疾病之一。在一般情况下,只要诊断正确,治疗及时,1～2周左右即可痊愈。但在临床工作中,经常会碰到一些肺炎患儿,虽然诊断明确,治疗也积极,就是病情反复不愈,遇到这种情况时应考虑下述几方面的问题: 一、是否免疫功能低下? 病儿的内因是不可忽视的因素。小儿免疫功能发育不够成熟和完善,特别是婴幼儿血中免疫球蛋白A(IgA)偏低,呼吸 Pediatric pneumonia is one of the common pediatric diseases. Under normal circumstances, as long as the diagnosis is correct, timely treatment, about 1 to 2 weeks to recover. However, in clinical work, often encounter some children with pneumonia, although the diagnosis is clear, the treatment is also positive, that is, the disease repeatedly unhealed, encountered this situation should consider the following aspects: First, whether immune dysfunction The sick child’s internal factors can not be ignored. Children’s immune function is not mature enough and perfect development, especially in infants and young children’s blood immunoglobulin A (IgA) low, breathing