My Dad is in a care facility for memory care. It's not a nursing home, per se, but it's got old people (not exclusively, but mostly). They've been super careful with COVID. I haven't seen my Dad in almost 10 months. Nobody has been in and out of there. No haircuts...my Dad looks like a 60s hippie, with hair to the top of his back.
Still, they've been ravaged. Out of like 65 people total, 10 have died. I think only 15 were even infected. I'm going to have my first visit on Friday, which is super controlled -- no touching, no giving him anything, I gotta wear a mask that they provide and a face shield, too.
Sorry you and yours are going through that. We've had a couple of bouts to deal with as well. The slow deaths are very hard to deal with ... even in older relatives.