[Some clinical aspects of therapeutic administration of iron preparations in childhood: iron and infections].

Iron is one of the most important metals for living organisms. There are many different reasons for an iron deficiency, which can lead to an iron deficiency anemia and can be treated by iron-containing drugs. But there are also some reasons leading to an iron overload, which can impair the defense against bacterial infections. An anemia in the course of an infection is usually not a result of iron deficiency but a physiological reaction against the invading microorganisms. A treatment with iron-containing drugs is only indicated in the case of an undoubtedly proven iron deficiency.