The VOICE trial fails to prove PrEP and microbicide gel are effective in protecting women in Africa from HIV.
First human vaccine trial in a developing country begins in Thailand.
The first viral load tests are developed, measuring the level of HIV in the body.
US revises HIV classification system and AIDS-defining illnesses.
US Food and Drug Administration approves 10-minute HIV testing kit.
The first HIV drug – zidovudine (AZT) – is approved for treatment of people living with HIV by the USA Food and Drugs Administration (FDA).
HIV is given its official name.
The new HIV-2 virus is discovered in West Africa.
India reports its first cases of AIDS.
Blood banks begin screening for HIV around the world.
