sick employees in nursing homes or even hospitals do not call in very much when they are sick.....the management will council you about you using your sick time and if you run out of sick time, and you call in sick, you are basically fired....that is why sickly employees come to work...they have to....
Nursing home my wife works at is shorthanded every Fri night. The young people call in “sick”. They just want the night off to party. My wife picks up their shifts all the time.