“When polls said only about half of all Americans would take a vaccine, I was saying herd immunity would take 70 to 75 per cent,†Fauci, who turned 80 on Thursday, told the Times.
“Then, when newer surveys said 60 per cent or more would take it, I thought, ‘I can nudge this up a bit,’ so I went to 80, 85.’â€
Science.