AP BIOLOGY

Detailed explanation-1: -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).

Detailed explanation-2: -AIDS is the late stage of HIV infection that occurs when the body’s immune system is badly damaged because of the virus. In the U.S., most people with HIV do not develop AIDS because taking HIV medicine as prescribed stops the progression of the disease.

Detailed explanation-3: -HIV and AIDS are not the same thing. And people with HIV do not always have AIDS. HIV is the virus that’s passed from person to person. Over time, HIV destroys an important kind of the cell in your immune system (called CD4 cells or T cells) that helps protect you from infections.

Detailed explanation-4: -Human immunodeficiency virus (HIV) is the virus that causes acquired immunodeficiency syndrome (AIDS). When a person becomes infected with HIV, the virus attacks and weakens the immune system. As the immune system weakens, the person is at risk of getting life-threatening infections and cancers.