الفهرس 
IntroductionOnly 14 pages are availabe for public view
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Abstract
The immune system is of the complicated systems in the human body and is primarily responsible for detecting and fighting off bacteria, parasites, viruses and other invading pathogens that get into the body and can cause a number of illnesses
Disorders in the immune system can result in disease, including autoimmune diseases, inflammatory diseases and cancer. Immunodeficiency diseases occur when the immune system is less active than normal, resulting in recurring and life-threatening parasitic infections and others with their complications