ANATOMY

Detailed explanation-1: -HIV (Human Immunodeficiency Virus) is a virus that attacks the immune system. (The immune system fights infections and diseases in a person’s body.) Over time, HIV weakens a person’s immune system so it has a very hard time fighting diseases. HIV causes AIDS (Acquired Immune Deficiency Syndrome).

Detailed explanation-2: -HIV infects and kills helper T lymphocytes (also called CD4 T cells), the white blood cells responsible for mobilizing the mediators of an immune response. Infection results in high casualties among these cells, with half of the infected CD4 T cell population dying every 12 hours.

Detailed explanation-3: -Overview. Severe Combined Immunodeficiency (SCID, pronounced “skid”) is a serious primary immunodeficiency disease (PI) in which there is combined absence of T lymphocyte and B lymphocyte function. SCID is fatal without a stem cell transplant or corrective gene therapy.

Detailed explanation-4: -HIV (human immunodeficiency virus) is a virus that attacks the body’s immune system. If HIV is not treated, it can lead to AIDS (acquired immunodeficiency syndrome). There is currently no effective cure. Once people get HIV, they have it for life.

Detailed explanation-5: -Human immunodeficiency virus (HIV) is the most well-known example of a chronic immune system condition caused by an infection. HIV infects T cells, specifically a type of T cell called CD4+ T cells.