Ann Zulawski's current research deals with issues of health, the environment and urban planning in 19th- and 20th-century Puerto Rico. Her most recent publications are “Urban Development, Public Health, and the Environment: A Historical Case Study in San Juan, Puerto Rico and Possibilities for the Future,” Brown Journal of World Affairs (Spring/Summer 2016, Volume XXII, Issue II, pp. 197-214), and “Environment, urbanization and public health: The bubonic plague epidemic of 1912 in San Juan, Puerto Rico,” Latin American Research Review (53:3, September 2018). Her book Unequal Cures: Public Health and Political Change in Bolivia, 1900–1950 (Duke University Press) examines the ways in which national debate about medicine and public health was related to different visions of citizenship, the state and the roles of indigenous people and women in Bolivia. She has also written on the social and economic history of Bolivia in the Spanish colonial period, including They Eat from Their Labor: Work and Social Change in Colonial Bolivia.