world aids day

The word aids stands for Acquired Immuno Defciency Syndrome.this means deficiency of immune system .Acquired during the life time of an individual indicating that it is not a congenital disease syndrome means a group of symptom .Aids was first reported in 1981 and in the last 25 years or so .it has spread all over the world killing more than 25 million person
      Aidsis caused by the human immuno deficiency virus [HIV],A member of a group of virusesvcalled RETRO VIRUS .transmission of HIV infection generally occurs by -sexual contact with person ,-by transfusion of contaminated blood and blood product ,-by sharing infected needles as in the casevof intravenous drug abusersvand ,- from infected mother to her children through placenta