There are only three groups:
Goodness gracious, why not nursing homes? Why not the immunocompromised?
"Any of five" underlying medical conditions put you at risk of "severe COVID-19-associated illness". So, "any one" of "five." Okay. CDC then lists five but prefaces the list of five with "including." So are there others than the five? Compromised immune systems? Okay, how about, those with lung cancer lol. How the hell is there not an "impaired breathing" UMC for a respiratory disease?
How did correctional facilities merit their own category and nursing homes not? The close quartering of inmates? Okay, that would be reasonable. Common sense would suggest however that if a population has an outsized proportion of one of the five UMC's, or outsized portions of multiple of the UMC's that they'd land their own category. But that cannot be correct. Nursing home residents would have all five in outsized proportion to the inmate population, indeed any other population group that comes to mind. Ah! Except hospitals. Hospitals don't have their own category either. So it has to be the close quartering in correctional facilities. And the close quartering with have to be for prolonged periods of time, not even gay men packed like sardines for a long 4th of July weekend of partying. Obviously not 50,000 football fans sitting right next to each other and frequently yelling, cheering, singing, chanting for three hours. Not even the data gets you a category! Nursing home residents and staff constitute one-third of all cases since the beginning of the epidemic in the U.S. Common sense...lol. Okay, those are the categories, three, those are their UMC's, five, and they're sticking to 'em. Doesn't stop me from yelling "BULLSHIT!" at that parsimonious categorizing, not that it will do any good or harm. Oh well! It is what it is.
You mean to tell me that nursing home patients don't have one of the five?