摘要: Primary immune deficiency diseases are inherited resulting from genetic defects that affect the development or function of one more components system, leading to an increased susceptibility infection and, in some cases, cancer, autoimmune allergic disease. The main system is protection against invading microorganisms (bacteria, viruses, fungi, and parasites) cause disease (pathogenic pathogens). In addition, it must destroy any body's own cells develop into cancer. alter result enhanced inability kill cancer a dysregulation These immunodeficiency demonstrate importance each altered system. This article describes known diseases, which illustrates role different molecules cell populations immunity.