Acquired
immune deficiency syndrome or
acquired immunodeficiency syndrome (AIDS or Aids)
is a collection of symptoms and infections resulting from the
specific damage to the immune system caused by the human
immunodeficiency virus (HIV). The late stage of the condition
leaves individuals prone to opportunistic infections and tumors.
Although treatments for AIDS and HIV exist to slow the virus's
progression, there is no known cure. HIV is transmitted through
direct contact of a mucous membrane or the bloodstream with a
bodily fluid containing HIV, such as blood, semen, vaginal fluid,
preseminal fluid, and breast milk.
This
transmission can come in the form of anal, vaginal or oral sex,
blood transfusion, contaminated hypodermic needles, exchange
between mother and baby during pregnancy, childbirth, or
breastfeeding, or other exposure to one of the above bodily
fluids.