Causes of cancer:
Cancer detection and diagnosis:
Treatment of cancer:
AIDS is a disease where immune system has been too weakened to defend itself against infections. AIDS cannot be treated but prevention is there to avoid AIDS
Ability to fight against disease is known as immunity; it is of two types innate immunity and acquired immunity. It can be active or passive immunity. In Autoimmunity self cells of body attack on it. Various organs in our body act like a organ of immune system like lymph node, spleen, MALT.