People who infected with the human immunodeficiency virus are called as HIV infected people and they abbreviated as PLWHA (People Living With HIV/AIDS). According to the AIDS epidemic update by UNAIDS in 2007, 33.2 million people are infected with HIV/AIDS and more than 68% of infected HIV individuals are living in Sub-Saharan Africa. According to a UNAIDS report, more than 4 million people were receiving antiretroviral therapy by the end of 2008 and there is an increase of 1 million compared with the end of 2007
