Where is the iPrEx study taking place?
The study is enrolling 3000 HIV-negative men who have sex with men (MSM) at 11 sites in six countries: two sites in Lima, Peru, one site in Iquitos, Peru, one site in Guayaquil, Ecuador, one site in Boston, one site in San Francisco in the United States, one site in Cape Town, South Africa, two sites in Rio de Janeiro and one site in Sao Paulo, Brazil and one site in Chiang Mai, Thailand.