Dr. Marrazzo is the president of the American STD Association, Associate Editor of the Journal of Sexually Transmitted Diseases, Medical Director of the Seattle STD/HIV Prevention and Training Center, and Co-Chair of the Steering Committee of the National Network of STD/HIV Prevention Training Centers. She is the Protocol Chair of the VOICE Study, a large study evaluating HIV pre-exposure prophylaxis administered vaginally and orally to women at high risk for HIV infection in sub-Saharan Africa. Dr. Marrazzo has extensive expertise in the area of STD, HIV, and Viral Hepatitis. She participates as the CHAC Co-Chair.