Ellen Kersh received a Master’s Degree in Biochemistry from the Free University Berlin, Germany, and a PhD in Biomedical Sciences from Washington University in St. Louis, MO. Her postdoctoral studies were with Dr. Rafi Ahmed at the Emory Vaccine Center in Atlanta, GA. Dr. Kersh joined the HIV Laboratory Branch at CDC in 2006. There, she has led collaborations on monkey studies modelling HIV infection risk during STI co-infections, and has initiated other research projects on mucosal and reproductive risk factors for HIV infection. She published over 40 peer-reviewed papers that have appeared in Science, Cell, Nature, Nature Medicine, and others. Dr. Kersh recently accepted the position of Branch Chief of the Laboratory Reference and Research Branch (LRRB) in the Division of STD Prevention at CDC where she will contribute to research and surveillance efforts of multiple STIs, novel diagnostic assay development, and resistance monitoring to antimicrobial agents.