本文对营养、免疫与感染之间的关系进行了深入探讨。流行病学与临床资料营养不良与感染之间存在着相互恶化的关系,在幼儿更为明显。他们的营养状态是决定发病率和死亡率的重要因素。而患有蛋白质-热能营养不良(PEM)的成年人在一些较大手术后脓毒病的发病率和死亡率均较高。 This article discusses the relationship between nutrition, immunity and infection. Epidemiology and clinical data There is a deteriorating relationship between malnutrition and infection, especially in young children. Their nutritional status is an important factor in determining morbidity and mortality. In adults with protein-heat malnutrition (PEM), the incidence and mortality of sepsis are higher after some major surgeries.