World AIDS Day, observed December 1 each year, is dedicated to raising awareness of the AIDS <e1>pandemic</e1> caused by the spread of HIV <e2>infection</e2>.
World AIDS Day, observed
World AIDS Day, observed December 1 each year, is dedicated to raising awareness of the AIDS pandemic caused by the spread of HIV infection.
<triplet> pandemic <subject> infection <object> Cause-Effect(e2,e1)