immunological disorder

immunological disorder in which some part of the body's immune system is inadequate and resistance to infectious diseases is reduced

lowering the body's normal immune response to invasion by foreign substances; can be deliberate (as in lowering the immune response to prevent rejection of a transplanted organ) or incidental (as a side effect of radiotherapy or chemotherapy for cancer)

reduction or lack of an immune response to a specific antigen

a serious (often fatal) disease of the immune system transmitted through blood products especially by sexual contact or contaminated needles

a rare immunological disorder characterized by the virtual absence of gamma globulin in the blood and consequent susceptibility to infection

an abnormally low concentration of gamma globulin in the blood and increased risk of infection

a congenital disease affecting T cells that can result from a mutation in any one of several different genes; children with it are susceptible to infectious disease; if untreated it is lethal within the first year or two of life