She completed medical school, residency, and fellowship at Penn,where she has directed the Occupational Health Service for 20 years. She is a fellow of the American College of Physicians and of the American College of Occupational and Environmental Medicine. Her academic and clinical activities focus on vaccine-preventable diseases, occupational infections, and occupational exposures. She has authored articles and chapters on diagnosing,preventing and treating tuberculosis in occupational health and emergency medicine settings.