Dalila de Sousa's Ph.D. dissertation addressed the influence of Darwinian Theory on Physicians’ Writings on Black Health in the US and Brazil in the post-abolition period.
Since then, Dr. de Sousa's research continued her work on the History of Medicine and the Health of Black Populations in both countries. For the past decade her focus was specifically on the role of Black Brazilian Women in the delivery of health care to their communities.