Which disease damages the human immune system? In cases of immune system over activity, the body attacks and damages its own tissues (autoimmune diseases). The immune system is a host defense system comprising many biological structures and processes within an organism that protects against disease.
If a person is born with a severely defective immune system , death from infection by a virus, bacterium, fungus or parasite will occur. An autoimmune disease is a condition in which your immune system attacks your body.
Common autoimmune diseases include type diabetes, rheumatoid arthritis, and inflammatory bowel disease. Celiac disease occurs when the immune system damages the small intestine when someone eats gluten. Immune deficiencies may be temporary or permanent. Temporary immune deficiency can be caused by a variety of sources that weaken the immune system. Common infections, including influenza and mononucleosis, can suppress the immune system.
When immune cells are the target of infection, severe immune suppression can occur. IgA Nephropathy IgA nephropathy is a kidney disorder caused by deposits of the protein immunoglobulin A (IgA) inside the glomeruli (filters) within the kidney.

