Aye a lot of the healthworkers who died did so basically because there was no training, no real facilities, not enough proper equipment and they were massively overworked and exhausted.
Basically a lot got infected before they knew the risks, a lot due to lack of proper protection, and a lot due to simple mistakes made either due to being too tired, or normal human error
It's one of the reasons sending in largish groups of armed forces medics is likely to make a difference, as if you can have a well trained group of medics (and support staff/equipment) working in facilities the chances of cross infection are much lower, and the survival rates will almost certainly go up (at the moment I believe many cases are dying in part because of things like dehydration).
Yet one woman with training and PPE still caught it.