Part of the fallout from CoV-19 will be greatly increased resistance to living in nursing homes and assisted living/congregate care facilities. During this pandemic they've famously been charnel houses. Stock in such operations is not something I'd want to hold for the next several years.
Density is only part of their problem. It is also the case that most residents have preexisting conditions which jeopardize their well-being, before any infectious agent makes an appearance.
Preexisting conditions are often the reason they no longer live on their own. The getting-old gig isn't a barrel of laughs.