A medical anthropologist by training, Dr. Arnold has led several rapid response studies since 2009, examining the impact of California’s state budget cuts on HIV prevention services, documenting barriers and facilitators to the implementation of PrEP for members of sexual and ethnic minority communities in California, and the investigating the provision of health care insurance to low income individuals living with HIV in California. More recently, she has been involved in a study on the integration of mental health and HIV-related service provision for individuals living with HIV in California. Dr. Arnold also has a robust program of research dedicated to developing and testing HIV prevention interventions for African American gay, bisexual, and transgender individuals.