AIDS is a disease that damages the immune system. It is caused by microorganisms. Microorganisms are organisms that are so small they can only be seen through a microscope, especially the virus (AIDS).
This is the AIDS quilt; squares are added to remember those who died from AIDS!
More information at:
AIDS.ORG (Immunet), http://www.aids.org/immunet/home.nsf/page/homepage.1999.
and,
Yahoo Inc. http://dir.yahoo.com/Health/Diseases_and_Conditions/AIDS_HIV/ 1994-1999 copyright