Inmunodeficiencias en la infancia

primary or secondary immunodeficiencies are pathological states, where a partial or total defect is observed in one or various of the components of the immune system. a detailed questionnaire, physical examination and complementary tests, allow to make a positive diagnosis of an immunodeficiency. the chronic or recurrent infection is the most common clinical sign. the most frequent causes of immunodeficiencies, as well as of other pathological states conditioning the harmless infections in immunity, are related. the differential diagnosis makes possible to establish an early therapeutics in order to prolongue the life of the immunodeficient patient to prevent unnecessary manipulations or expenses concerning the infected patient without deteriorating immunity.