Yes, it is a tough job and I have great respect for so many health workers, but we shouldn’t make the assumption that all of them have got it whilst working. Many of them have got it elsewhere and brought it to work. I say this not to blame them, because most would have been asymptomatic, but to show how easily this can happen.
In hospitals in particular there have been very few staff actually infected in the hospital itself. Some but not many. Aged care is another story of course.
The really big issue is when a hospital staff member is found positive every staff member who has been in contact with that person has to be isolated and not working. That puts enormous pressure on staffing in hospitals.