HIV virus picture
"HIV" stands for "human immunodeficiency virus," so adding the word
"virus" to the acronym creates a redundancy. "HIV" is the name of the
organism that is the cause of AIDS, not a name for the disease itself. A person may be
HIV-positive (a test shows the person to be infected with the virus) without having yet
developed AIDS (acquired immunodeficiency syndrome). HIV is the cause, AIDS the result.