AIDS, as one of the hardest curing epidemic in the world, is an immune system deficiency syndrome. In the UNAIDS World AIDS Day Report 2011, it says that “More people than ever are living with HIV, largely due to greater access to treatment. At the end of 2010, an estimated 34 million people [31.6 million–35.2 million] were living with HIV worldwide, up 17% from 2001.” AIDS grows gradually each year without any effective method to halt. Even in the Report 2012, it also has a bit AIDS problems related…
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