From wikipedia -
acquired immunodeficiency syndrome, or acquired immune deficiency syndrome (or acronym aids or aids), is a collection of symptoms and infections resulting from the specific damage to the immune system caused by infection with the human immunodeficiency virus (hiv).[1] aids is a condition that results from the latter stages of advanced hiv infection in humans, thereby leaving compromised indivduals prone to opportunistic infections and tumors. Although treatments for both aids and hiv exist to slow the virus' progression in a human patient, there is no known cure.
From medical journal -
aids is an infectious disease caused by human immunodeficiency virus (hiv-1, hiv-2), a retrovirus that causes immune system failure and debilitation. Hiv is spread through direct contact with the bodily fluids of an infected person.
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