coup d'Ã©tat. a sudden and decisive action in politics, especially one resulting in a change of government illegally or by force. Origin of coup d'Ã©tat.
The human immunodeficiency virus (HIV) is a lentivirus (a subgroup of retrovirus) that causes HIV infection and acquired immunodeficiency syndrome (AIDS).AIDS is a condition in humans in which progressive failure of the immune system allows life-threatening opportunistic infections and cancers to thrive.he human immunodeficiency virus (HIV) is a lentivirus (a subgroup of retrovirus) that causes HIV infection and acquired immunodeficiency syndrome (AIDS).
HIV / AIDS. HIV is the acronym for the Human Immunodeficiency Virus, a virus that attacks the bodyâs immune system, leading to full-blown AIDS (Acquired Immunodeficiency Syndrome). AIDS is devastating because it leaves the body susceptible to life-threatening infections and certain kinds of cancers.