Chris Karp is deputy director of global health discovery and translational sciences program at the Bill & Melinda Gates Foundation. He leads the vaccines and host-pathogen biology team that targets fundamental scientific and technological advances in global health that could lead to new ways to prevent and treat disease. Prior to joining the foundation in 2012, he was on the faculty of the departments of medicine and molecular microbiology and immunology at Johns Hopkins University School of Medicine, and founded the division of molecular immunology at Cincinnati Children's Hospital Research Foundation, where he was Esiason/Bell Professor of Pediatrics.