A general internist who began her career in health care as a registered nurse, Kahn works on the research staff of Princeton University's Program on Science and Global Security. Her expertise is in public health, biodefense, and pandemics. From 2003-2005, she led a study that assessed the public health infrastructures of New Hampshire, New Jersey, New York, and Pennsylvania. She has also co-organized the Carnegie Corporation’s "Biodefense Challenge" seminar series, which introduces biosecurity, codes of conduct, and dual-use biotech threats to the life sciences community. Prior to joining Princeton, she was a managing physician for the New Jersey Department of Health and Senior Services and a medical officer for the Food and Drug Administration.