AccordingtoareportpublishedbythePopulationReferenceBureau(PRB),anestimatednumberof40millionpeoplewerelivingwithHIV/AIDSbytheendof2001.Sub-SaharanAfrica,withlessthan11%oftheworld'spopulation,containsmorethan70%ofallHIV-infectedpeople.Butnoregionisunaffected: