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Primary immune deficiencies (PIDs), also known as inborn errors of immunity (IEI) are a group of more than 400 potentially serious disorders that can lead to frequent or severe infections, swellings and autoimmune problems. PID/IEI discorders can be caused by defects in genes that control the immune system, and may be inherited.  

The International Patient Organisation for PIDs (IPOPI) has released a new educational video series on PIDs, to increase the understanding of these conditions, the importance of early detection and access to treatments. Updated December 2022

Fast facts about primary immunodeficiencies (inborn Errors of Immunity) Updated June 2023

Common Variable Immunodeficiency (CVID) 


Immunoglobulin Replacement Therapy (IRT) 

Primary Immunodeficiency (Inborn Errors of Immunity) 

Severe Combined Immunodeficiency (SCID) 

Sucutaneous Immunoglobulin (SCIg)

SCIg Therapy - General Information 

SCIg Therapy - Equipment Checklist

SCIg Therapy - Infusion Checklist

Further Information

Webpage updated November 2023