what do you feel? if i say i didn t feel anger i would be lying because this can be prevented with vaccinations. reporter: in the covid unit 73 year old ron is vaccinated but not boosted. he has an underlying medical condition. i d say i was the last one to think that i would get it. reporter: what would you say to people who think that omicron is mild and it s no big deal? i m willing to walk out the door and they can come and sit in here and see what it s like. reporter: stephanie, i have to tell you being there, look, i have not actually been into a covid icu before, i ve done a lot of things but i hadn t been into an icu. we can t show you the faces of all the patients other than ron who agreed to talk to us. most of them can t talk. most of them are on ventilators and just seeing that with your own eyes, i wish i could express