Elizabeth Sully joined the Guttmacher Institute as a Senior Research Scientist in 2015. Her research focuses on sexual and reproductive health, including abortion measurement, adolescent health, the impact and cost of sexual and reproductive health services, and socio-behavioral dynamics of HIV transmission. Dr. Sully previously conducted research with the Medical Research Council and Uganda Virus Research Institute in Uganda, with the Canadian Aboriginal AIDS Network in multisite studies across Canada, and with Liverpool VCT Care and Treatment in Nairobi, Kenya. Dr. Sully earned her MA and PhD in public affairs and demography from Princeton University’s Woodrow Wilson School of Public and International Affairs and the Office of Population Research and her BA with Joint Honors in political science and international development studies from McGill University. She is a member of the Population Association of America, the International Union for the Scientific Study of Population and the Union of African Population Studies.