Mark Feinberg is president and CEO of IAVI where he leads a global team working to advance the development of vaccines and other biomedical innovations to protect against infection with HIV, TB, and other infectious diseases that disproportionately impact low-income countries. Prior to joining IAVI in late 2015, Feinberg served as chief public health and science officer with Merck Vaccines. In this role, he helped advance the development and global availability of vaccines against rotavirus, human papillomavirus, and other infectious diseases. He also led a range of research initiatives to address unmet health needs in low-income countries including the establishment of the MSD-Wellcome Trust Hilleman Laboratories and the coordination of a private-public partnership to expedite Ebola vaccine development. Previously, he spent more than 20 years exploring HIV/AIDS pathogenesis, treatment, and prevention research and the biology of emerging diseases in both academia and government.