The first AIDS case identified in Brazil was in 1982. Infection rates climbed exponentially throughout the 1980s, and in 1990 the World Bank famously predicted 1,200,000 cases by 2000, approximately double the actual number that was later reported by the Brazilian Ministry of Health and most international organizations. South and Southeast have 75% or more of this infection (Rio Grande do Sul, São Paulo and Rio de Janeiro). The Northeast has 33% of the population but only 10% of AIDS.
The Brazilian experience is frequently cited as a model for other developing countries facing the AIDS epidemic, including the internationally controversial policies of the Brazilian government such as the universal provision of antiretroviral drugs (ARVs), progressive social policies toward risk groups, and collaboration with non-governmental organizations.