article_snippet: Worldwide, more than 33 million people have HIV.
article_snippet: The human immunodeficiency virus (HIV) that causes AIDS is spread via blood, semen and breast milk.
article_snippet: There is no cure for the infection, but AIDS can be kept at bay for many years with cocktails of antiretroviral drugs.
article_snippet: AIDS began more than 30 years ago and has killed up to 40 million people worldwide.
article_snippet: But with more than half of the 35 million people with HIV unaware more than half of the 35 million people with HIV are infected, the battle is far from over however, warned Michel Sidibe, head of UNAIDS - the Joint United Nations Programme on HIV/AIDS.
article_snippet: More than 100,000 people live with HIV in the UK.