Arachu Castro, PhD, MPH, is Instructor in Medical Anthropology in the Department of Social Medicine, Harvard Medical School. She has worked in the areas of infectious disease, reproductive health, and nutrition since 1988, both in Latin America and in Europe. Latin America constitutes her main geographical area of interest. Since 1994, she has worked in Mexico, Cuba, Peru, Haiti, and Argentina.

She obtained her PhD in Anthropology at the åcole des Hautes Etudes en Sciences Sociales in Paris, France, her PhD in Sociology at the University of Barcelona, Spain, and her Master of Public Health at Harvard School of Public Health. She has taught medical anthropology courses at the University of Barcelona (Spain), the National University of CÃrdoba (Argentina), and the National School of Public Health (Spain). Dr. Castro has published several articles and a book, always at the intersection of medical anthropology and public health. She is the chair of Critical Anthropology of Health, an Interest Group of the Society for Medical Anthropology.

Dr. Castro's main focus is service-based research in infectious disease and social inequalities and health policy of tuberculosis and HIV/AIDS. Her current work in these areas include the operational research of Partners In Health' HIV Equity Initiative, a prevention and treatment program in Haiti's Central Plateau, whose expansion is to be funded by the Global Fund Against AIDS , Tuberculosis, and Malaria. The project, directed by Dr. Paul Farmer, is based on a biosocial approach, and will focus on the analysis of the strengthening of the public health system and its quality of care.