Abstract:
AIDS has become a global health crisis and a leading cause of death in the developing world. Since 1981, more than 25 million people worldwide have died from this immunodeficiency syndrome and 12 million AIDS orphans have been left behind in Africa alone, According to the UNAIDS/World Health Organization (WHO) 2006 AIDS epidemic update, the number of people living with HIV (human immunodeficiency virus), the virus linked to AIDS, has grown from 8 million in 1990 to nearly 40 million at the end of 2006.

Despite improvements in access to antiretroviral (ARV) drugs, the death toll from AIDS in 2006 was close to 3 million, indicating the need for alternative/complementary therapeutic modalities.

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