What is a primary effect of HIV on the body's immune system?

What is a primary effect of HIV on the body's immune system?

• A. Destroys Immune Cells, Weakens Immune System.
• B. Strengthens the Immune Response.
• C. Increases Red Blood Cell Production.
• D. Cures Immune Deficiency.

Answer: (A)

HIV mainly weakens the immune system by attacking and destroying CD4+ T cells, the immune system’s main coordinators. The virus binds to the CD4 receptor on these cells, enters them, and uses the cell’s machinery to replicate, gradually reducing their numbers. With fewer CD4 cells, the body’s ability to mount effective immune responses declines, leaving a person more vulnerable to infections and certain cancers. This is why the statement that HIV destroys immune cells and weakens the immune system is the best description of its primary effect. It does not strengthen the immune response, increase red blood cell production, or cure immune deficiency.

HIV mainly weakens the immune system by attacking and destroying CD4+ T cells, the immune system’s main coordinators. The virus binds to the CD4 receptor on these cells, enters them, and uses the cell’s machinery to replicate, gradually reducing their numbers. With fewer CD4 cells, the body’s ability to mount effective immune responses declines, leaving a person more vulnerable to infections and certain cancers. This is why the statement that HIV destroys immune cells and weakens the immune system is the best description of its primary effect. It does not strengthen the immune response, increase red blood cell production, or cure immune deficiency.