Question

Differentiate between Autoimmune disease and Immunodeficiency disease.

Answer 1

Aspects	Autoimmune diseases	Immunodeficiency diseases
Cause	Caused by an overactive immune system in the absence of a pathogen.	Caused by an insufficient immune response in the presence of a pathogen or opportunistic organism.
Age	Common in middle-aged people.	Age distribution varies depending on the underlying cause.
Diagnosis	Diagnosed by immune biomarkers, which detect typical associations of symptoms and signs.	Diagnosed by immune biomarkers, which detect typical associations of symptoms and signs.
Treatment	Treated with immunosuppressants.	Treated by replacing the missing component with transfusions, preventing infections with immunization and prophylaxis or in selected cases with stem cell transplantation.