AIDS, in 1981 in the United States for the first time and found confirmation. Full-called "acquired immunodeficiency syndrome" (Acquired Immune Deficiency Syndrome), the initials of AIDS who had translated it as "AIDS" and "love sick." There are two types: HIV-1 and HIV-2 type, and their respective subtypes. Popular in different parts of different subtypes of the same subtype in different regions there are some differences. The body is infected with the "human immunodeficiency virus" (HIV - human immunodeficiency virus), also known as the AIDS virus, caused by infectious diseases.
In 2007, it was estimated that million people lived with the disease worldwide, and that AIDS killed an estimated million people, including 330,000 children.
Over three-quarters of these deaths occurred in sub-Saharan Africa, retarding economic growth and destroying human capital.
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