Do you know the difference between HIV and AIDS?

HIV is the human immunodeficiency virus that causes AIDS (acquired immunodeficiency syndrome). When HIV infects someone, the virus enters the body and begins to multiply and attack immune cells that normally protect us from disease. Eventually the body's immune system breaks down and is unable to fight off so-called "opportunistic infections" and other illnesses, ranging from pneumonia and cancer to blindness and dementia. It's only when someone with HIV begins to experience these specific infections and illnesses that they're diagnosed with AIDS.