Brazil has been commissioned to help formulate the World Health Organisation's (WHO) new five-year global HIV/AIDS strategy.
Incoming WHO Director-General, Dr Jong-Wook Lee, said he was impressed by Brazil's ability to offer free treatment, despite its social and economic problems.
"We are particularly keen to get the benefit of the Brazilian experience," Dr Lee said in a statement.
Brazil's programme to combat HIV/AIDS has already been adopted in 31 developing countries, including Kenya and South Africa.
"As treatment is rolled out, HIV prevention efforts must also intensify. We will use the delivery of HIV/AIDS services as a way to build up health systems," Lee added.
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