Dr. Deborah Birx 2020 vs 2022 (former White House Coronavirus Response Coordinator)

2020: "To truly achieve herd immunity is going to take through the summer and potentially even into the fall. That's getting, you know, 70 to 80 percent of Americans immunized."

2022: "I knew these vaccines were not going to protect against infection, and I think we overplayed the vaccines and it made people worry that it's not going to protect against severe disease and hospitalization - it will - but let's be very clear, 50% of people who died from the Omicron surge were older, vaccinated."