Andrea N. Polonijo is an Assistant Professor of Sociology. Her research focuses on health disparities along axes of socioeconomic status, race, ethnicity, sexual orientation, and gender identity. She currently leads research projects that focus on the social determinants of vaccination and LGBTQ+ health and collaborates on community-based research with people living with HIV. Dr. Polonijo has published more than 20 articles in leading social science and health journals including Social Science & Medicine, Journal of Health and Social Behavior, Journal of Adolescent Health, AIDS and Behavior, and LGBT Health. She earned her BA and PhD in Sociology from the University of British Columbia and MPH in Health Promotion from the University of Toronto. Prior to joining UC Merced in 2021, Dr. Polonijo completed a Chancellor’s Postdoctoral Fellowship at the UC Riverside School of Medicine.