Dr. Louise Kuhn is Professor of Epidemiology at the Mailman School of Public Health and in the Gertrude H. Sergievsky Center, College of Physicians and Surgeons, Columbia University, New York. Her work is focused on prevention of mother-to-child HIV transmission and pediatric HIV treatment and drug resistance. Her research has addressed the challenges of infant feeding options for HIV-infected populations, including risks and benefits of early and abrupt weaning. She studiesthe pathogenesis of mother-to-child HIV transmission and progression of HIV infection in neonates and infants. Her research has helped identify some of the biological vulnerabilities of HIV-exposed uninfected children. Central to her research endeavors is focus on translation of scientific findings into effective maternal and child health programs in low resource settings.