My nans care home had (until this week) 0 cases of coronavirus, largely due to them locking down / banning visits / changing staff work patterns in mid March. They also largely ignored official government advice at the time.
If Johnson had dealt with this crisis as well as they did we’d have tens of thousands fewer deaths and much less economic damage.
I think over half of care homes have remained covid free throughout this pandemic, but a lot of those will be lucky because that will be down to them being in remote locations that haven't really been touched by the virus. I'm thinking of places like here in the south west, and rural areas of Wales, Scotland and Northern Ireland.
But there are also many care homes, like your nans, who have gone over and beyond to protect their residents. making independent decisions that kept them ahead of the curve. Hard decisions, like staff becoming residential and being kept away from their own families.
The owners, managers and staff of these business's, which is what they are at the end of the day, deserve every ounce of credit that comes there way. As you say, if only some of the minds that were making those decisions, were in positions of importance in the country managing this crisis, then a lot of lives could have been saved, and not just within our care home community.