why, all of a sudden, are the geriatric facilities seeing smaller case numbers, anyways?

is it because of measures that were introduced that are different than in the general population? if so, what are these measures? i don't see them...

is it because everybody died? i don't think the numbers suggest that.

or is it, actually, because a level of herd immunity sunk in amongst health care workers, who are no longer spreading it?

i'm going with option #3 as the most likely.