Dr. Roberts specializes in the history of post-emancipation African-American social movements, class formations, and urban political economy. His book, titled Infectious Fear: Politics, Disease, and the Health Effects of Segregation, is an exploration of the political economy of health and tuberculosis control from the late nineteenth century and the mid-twentieth century. He is currently researching the development of late nineteenth- and twentieth- century patterns of labor and West Indian migration in the Republic of Panama. At Columbia he has faculty affiliations with the Institute for Research in African-American Studies, and the Institute for Social and Economic Research and PolicyÃ¢â‚¬â„¢s (ISERP) Robert Wood Johnson Health and Society Scholars Programs (H&SS), where he is Coordinator of the Working Group in African-American History and the Health and Social Sciences (AAHHSS). He received his B.A. from the University of Virginia (1995) and his Ph.D. from Princeton (2001).