Disease Associated with Immune System
Combined cellular and humoral immune deficiencies result from lack of all of the following except

HIV infection of CD4+ T cells
a thymus
class II MHC
transporter of antigen peptides (TAP)

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Disease Associated with Immune System
Bone marrow given to an infant with SCID must

contain mature T cells that can begin making immune responses immediately
come from a donor that shares some MHC alleles with the recipient
be irradiated to eliminate GVHD
come from one of the child's parents

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