What Happens in an Immune System Disorder An immune system disorder occurs when the body’s natural defence system, designed to protect against viruses and bacteria,

What Is Lupus Lupus is an autoimmune disease in which the immune system mistakenly attacks healthy tissue throughout the body instead of protecting it from

What Is Rheumatoid Arthritis Rheumatoid arthritis is an autoimmune condition in which the immune system mistakenly attacks the lining of the joints, creating inflammation that