Acquired Immuno Deficiency Syndrome is called AIDS for short.There is no cure for this dreaded disease.Nobody knows how AIDS came to be.However it became prominent after an yellow fever epidemic in the late seventies.There are three ways in which this disease spreads:
1.By conjugation between same-sex or heterosexual partners.
2.By usage of an infected syringe during blood transfusion.
3.From mother to child she is carrying.
Those that contact the disease may undergo the Elisa test.However HIV positives through elisa test may be only carriers.They may not suffer from the disease.Apart from the three ways mentioned AIDS does not spread in any other way.It is okay to use towels,combs and clothes of AIDS patients without fear of contagion.AIDS-affected people need special care as their immune system is weaker than others.They are badly affected by even common fever.
(My info is from TV programmes on AIDS.)