get two doses, those people will still be quite protected, we think, now from being hospitalized or dying from covid-19. >> you put it this way on twitter to that point. you said, we have two americas, the vaxxed and the unvaxxed. the vast majority of triple vaxxed will be protected from covid or death. the unvaxxed, you're playing russian roulette. why would anyone take such a risk when vaxxed is safe and works? why? it was one year ago today, doctor, a nurse in new york became the first person in america to get an authorized covid shot. since then the virus has killed half a million more people in the united states. where did we go wrong? >> well, it's not really understood well where we went wrong, chris. here's the thing. in medical school, we learned about viruses, we learned about vaccines and virology and everything related to it.