I know your post was in the context of vaccines, but, from my sources, at least in Massachusetts, a lot of those in the hospital for Covid are there because they need the care once they get finished with oxygen therapy. They are still in the hospital because the step down care isn’t available. The LTC facilities won’t take them if they are still positive. People who actually have a nice urban/suburban single family home to go to are discharged home. For those who live in multigenerational tenement type housing, the family may not want them home if they are still infectious. So they stay on the hospital census until they can move them to a facility to finish recovery. For the 700 or so in Massachusetts’ hospitals, I’d estimate half don't need hospital level care if what I’m hearing from my hospital based MD and social worker friends are correct.