Vaccine developer; Former White House & Gates Foundation; CEPI Board. Developing vaccines for dengue, COVID-19, norovirus, Zika as head of Takeda Vaccines. Physician trained in pulmonary & critical care medicine. I’m a member of the CEPI Board (Coalition for Epidemic Preparedness Innovations), which is playing a key role in COVID-19 vaccine development. I previously led pandemic preparedness & biodefense at the White House and vaccine delivery at the Bill & Melinda Gates Foundation. Physician trained @ UCSF in Pulmonary & Critical Care Medicine, Internal Medicine @umich. Spend most of my time on Twitter and Clubhouse talking COVID and things we could be doing better.