explain them. >> yeah, so, they made the sort of distinction. they said, we're looking at moderate or severely immunocompromised people. and they basically based this on the evidence of what they were seeing which is sort of twofold. one, you sort of mentioned here already, not only was there evidence that the protection, the immunity was lower in someone who had a weakened immune system and was vaccinated but also as a result, they got sicker as well. so, 485 times more likely to end up in the hospital but i can show you what that meant for hospitalizations overall. we know that most of the people, victor, in the hospital with covid are unvaccinated. but for people who are in the hospital with breakthrough infections, a large percentage of them were also immunocompromised. so, that was, i think, what sort of got this discussion going some time ago. sort of the why of things. the who, to your question, and we can -- i think we may have the graphic to show you. >> sanjay, i have to interrupt you, unfortunately. we've got to go to the pentagon now. there's admirable john kirby on