 I had had the previous nine or ten years doing things that were very, very positive in saving lives for other diseases. Then all of a sudden, when I made that change, every single day, no matter what I did, my patients died. Decades later, the COVID pandemic, also a frightening, mysterious disease, also highly politicized. I have a responsibility to the American public. I felt that very strongly as a physician and a scientist and a public health person.