The Aga Khan University Medical College (Pakistan), 1998, MBBS, Medicine and Surgery; Johns Hopkins University, 2003, MPH, Public Health; Johns Hopkins University, 2007, PhD, Global Disease Epidemiology and Control
Infectious Diseases, Vaccines, and Global Health
Used high-impact science to inform and change vaccine policy and clinical vaccine recommendations in multiple countries. He has conducted seminal studies on vaccine refusal, maternal immunization, and COVID-19. He has used public scholarship (e.g. Op-eds in New York Times & Washington Post) to advocate for vaccines.