Here is the latest global and regional picture on HIV and AIDS from a report by the United Nations Programme on AIDS (UNAIDS).
* An estimated 34.2 million people worldwide had the human immunodeficiency virus (HIV) that causes AIDS in 2011, according to the UNAIDS data, up 18 percent on 2001, when 28.9 million were living with HIV.
* There were 2.5 million new HIV infections in 2011, including an estimated 330,000 among children.
* AIDS-related deaths fell for the fifth year running to 1.7 million, down from a peak of 2.3 million in 2005 and 2006.
* More than 8 million people had access to antiretroviral therapy, an increase of 20 percent from 2010. The U.N. wants the number to hit 15 million by 2015.
* A year's supply of antiretroviral drugs cost less than $100 per person per year for the least expensive regimen recommended by the U.N. In 2000, it cost more than $10,000.
* 46 countries, territories and areas restrict people living with HIV from entering or staying.
* Sub-Saharan Africa remains the region hardest hit by HIV, with 23.5 million HIV-positive people in 2011, about 69 percent of the global total.
* The number of new HIV infections in sub-Saharan Africa has dropped to 1.7 million in 2011 from an estimated 2.6 million in 1997.
* There were 1.2 million AIDS-related deaths in sub-Saharan Africa in 2011, similar to 2010.
* AIDS has killed at least a million people each year in the region since 1998.
* Nearly 6.2 million people were receiving antiretroviral therapy in sub-Saharan Africa in 2011, up from just 100 000 in 2003.
* Although rates of HIV are lower in Asia than in some other regions, the size of the Asian population means it has the second largest group of people living with HIV.
* There were 4.2 million people living with HIV in South and South East Asia in 2011, and there were 300,000 new infections in the region and 270,000 AIDS-related deaths in 2011.
-- An estimated 21,000 children became infected with HIV in South and South-East Asia in 2011.
* In East Asia, 830,000 people have HIV in 2011. There were 60,000 AIDS-related deaths in 2011. In this region, there has been an increase in new HIV infections to 89,000 in 2011 from 74,000 in 2001.
Eastern Europe and Central Asia:
* Since 2001, the number of people living with HIV in this region has increased to 1.5 million in 2011 from 410,000 in 2001.
* Russia and Ukraine account for nearly 90 percent of the regional epidemic. In the Russian Federation, newly reported HIV cases increased from 39,207 in 2005 to 62,581 in 2010.
* In 2011, an estimated 90,000 people died of AIDS-related causes compared to 15,000 in 2001.
Middle East and North Africa:
* There are 330,000 people living with HIV in 2011 in this region. New infections were 39,000 in 2011, and deaths from AIDS numbered 25,000 in 2011.
* There were 1.4 million people living with HIV in North America in 2011, including 4500 children.
* The number of people newly infected with HIV in the region in 2011 was 58,000.
- Less than 100 children in the region became infected with HIV in 2011.
- An estimated 20,000 people in North America died of AIDS-related causes in 2011.