ADA-1	Adenosine deaminase 1
ALBIA	addressable laser bead immunoassay
ALPS	autoimmune lymphoproliferative syndrome
ATM	ataxia-telangiectasia
BTK	Bruton’s tyrosine kinase
CAP	College of American Pathologists
CCR7	C-C chemokine receptor 7
CI	confidence intervals
CID	combined immunodeficiencies
CLIA	Clinical Laboratory Improvement Amendments
ChLIA	chemiluminescent immuno-assay
CVID	common variable immunodeficiency
DNT	double negative TCR alpha/beta circulating T cells
DOCK8	dedicator of cytokinesis 8
EIU/mL	enzyme international units/mL
ELISA	enzyme-linked immunosorbent assay
EPEC	enteropathogenic E. coli
FDA	Food and drug administration
GOF	gain-of-function
HIDS	hyper-IgD syndrome
HLH	hemophagocytic lymphohistiocytosis
IEI	inborn errors of immunity
IPEX	immunedysregulation polyendocrinopathy enteropathy X-linked
IUIS	International Union of Immunological Societies
LAD	leukocyte adhesion deficiency
LOF	loss-of-function
MKD	mevalonate kinase deficiency
MSMD	Mendelian susceptibility to mycobacterial diseases
NIAID-DAIDS	National Institute of Allergy and Infectious Diseases Division of AIDS
NK	natural killer
PAD	predominantly antibody deficiency
PERISCOPE	PERtussIS COrrelates of Protection Europe
PID	primary immunodeficiency diseases
PIRD	primary immune regulatory disorders
PNP	purine nucleoside phosphorylase
PnPS	pneumococcal polysaccharide
PPV-23	pneumococcal prevalent 23 serotypes
QAS	quality assessment
qRT-PCR	quantitative real-time polymerase chain reaction
RALD	RAS-associated autoimmune leukoproliferative disorder
SCID	severe combined immunodeficiency
SD	standard deviation
sIgA	secretory IgA
SIgAD	selective IgA deficiency
SPAD	specific polysaccharide antibody deficiency
TCR	T cell receptor
TREC	T cell receptor excision circles
Treg	regulatory T cells
TYK2	tyrosine kinase 2
WAS	Wiskott-Aldrich syndrome
WASP	Wiskott-Aldrich syndrome protein
WHO	World Health Organization
XLA	X-linked agammaglobulinemia
XLP	X-linked lymphoproliferative syndrome