HIV/AIDS epidemic appeared in the early 1980s, with five cases of gay men infected with AIDS in Los Angeles, United States of America in 1981. The disease has spread quickly and attack on every object, different age groups, different professions. and become dangerous second pandemic plague. It not only affects the health, but also affect the development of economy, culture, society and population throughout the world. According to the report of the World Health Organization, as of the end of 2011, worldwide there are about 34 million people are living with HIV/AIDS, 1.7 million people die from AIDS related diseases, mostly in those countries with low and middle income
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