Dr. Darbes is Principal Investigator of a study of voluntary counseling and testing for HIV for heterosexual couples in South Africa, while active in all aspects of the Gay Couples Study. In general, Dr. Darbes’ research is focused on the influence that partners may have on each other’s health behavior. In addition, she is interested in innovative dyadic data analysis techniques. In addition to her work with the Gay Couples Study, she collaborates on studies exploring adherence for HIV in gay male couples, and integrating reproductive health issues into HIV care in sub-Saharan Africa. She has also supplemented her research activities with clinical work with HIV-positive people and within the gay community. Dr. Darbes brings extensive conceptual, practical and analytical skill to the Gay Couples Study.