(CNN) - As the global community commemorates World AIDS Day on Wednesday, international health organizations report both promising and sobering trends.

While the United Nations says new HIV infections and AIDS-related deaths have declined by almost 20 percent worldwide over the past decade, the estimated number of children living with HIV or AIDS in 11 Asian countries has increased by 46 percent between 2001 and 2009, the World Health Organization's South-East Asia office said Wednesday.

A record number of adults got screened for the first time last year, almost 83 million Americans between 18 and 64 report being tested in 2009, that's an increase of 11 million people from
2006. Still, the CDC says 55% of all adults have never been tested and 28 %of the population at high risk for HIV, hasn't been screened either. Nineteen years after Magic Johnson announced he had HIV, another NBA player began his personal crusade against AIDS. CNN's Ted Rowlands reports on Pau Gasol's pledge to help fight the disease and his UNICEF Ambassadorship in Africa.