Understanding Immune System Disorders

Learn how to assess immune function and detect immunodeficiencies with Binding Site's advanced assays for Immune Status Testing.

What is it

Immunodeficiency (ID) is a term used when the body’s inherent ability to fight infections is either compromised or absent.

This can affect various components of the immune system including lymphocytes, phagocytes, and the complement system1

There are two main sub types of immunodeficiency:

1. Primary immunodeficiencies (PID)

2. Secondary imunodeficiency (PID)

In the last few years, the term "inborn errors of Immunity" (IEI) has also been used increasingly in literature. 

Learn more about Primary Immunodeficiencies

  • Prevalence
  • Signs and Symptoms
  • Classification of PID manifestations
  • Examples of PIDs
  • Diagnosis


What are Primary Immunodeficiencies?

Learn more about Secondary Immunodeficiencies

  • Causes
  • Examples and possible manifestations
  • Prevalence
  • Diagnosis
  • Treatment


What are Secondary Immunodeficiencies?

Inborn Errors of Immunity 


Recently, the terminology 'Inborn Errors of Immunity or IEI' started appearing in literature. What is it and what does it mean? 


Find out more about IEI

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