A physician graduated from the University of Wisconsin-Madison (United States), with training in internal medicine by the Oregon Health and Science University (United States). In Emory University (USA), he completed training in infectious diseases. He was an officer with the epidemiology intelligence service of the Meningitis and Special Pathogens Division of the United States Centers for Disease Control. At Novartis Vaccines and Diagnostics, he was head of clinical franchises for vaccines against meningitis and sepsis. He led the clinical development and global licensing for children, adolescents, and adults of a quadrivalent meningococcal glycoconjugate vaccine and a protein-based serogroup B vaccine. He supervised the clinical development of group B streptococcal glycoconjugate vaccine, for pregnant women to prevent neonatal diseases. He is currently deputy officer of clinical and integrated vaccine development at the Global Health Division of the Bill and Melinda Gates Foundation. His work provides technical and strategic guidance on clinical development for the Foundation’s program strategy teams and external partners. In addition, he leads vaccine development activities at HPV vaccine foundations.