Health economist Omar Galarraga aims to increase access to effective HIV prevention through the use of pre-exposure prophylaxis (PrEP) medication in order to reduce HIV incidence among the most-at-risk populations in low- and middle-income countries. With this project, he is testing innovative user-centered ways to promote PrEP adherence (taking one pill daily) using conditional economic incentives among male sex workers in Mexico. The incentives are expected to be cost-effective in the long run considering the number of HIV infections that could be averted through adherence and to have a positive impact as a critical step toward scaled-up implementation of PrEP in this high-risk population in Mexico. Read an article from Galarraga’s research here.