Sure, it's not going to be perfect. But at the other end of the scale in the UK, for example, they were discharging people they knew to be infected into care ho

Sure, it's not going to be perfect. But at the other end of the scale in the UK, for example, they were discharging people they knew to be infected into care homes. If you tested everyone you would miss some, but you'd catch some. You'd provide proper PPE to everyone (that is, if you hadn't cancelled pandemic preparedness measures as in the US and UK) and so on. The risk wouldn't be eliminated, but you could at least reduce it with some relatively simple measures.