This article reports on the expansion of global-health programs in the U.S. as universities respond to rising donations and student interest. New York University, which started its program last year, is one of a growing number of universities that are responding to a surge in student demand for courses and programs in world health. NYU's students, all of whom have or are completing professional degrees in other fields, have begun their careers during a period of intense media and philanthropic attention to the stark health-care disparities between rich and poor countries. Between 1995 and 2006, applications to global-health programs in the United States increased from 1,319 to 2,506, according to the Association of Schools of Public Health. The number of public-health schools grew from 27 to 39 during the same time, while the number of students graduating with master's degrees in international health soared 69 percent. Experts say the growth is fueled by the realization that in an era of globalization, health threats like AIDS, SARS, and avian flu transcend national boundaries. Some of the growth in programs is being fueled by a surge in philanthropic support for international health.