...religious orders traditionally involved in Health Care. How many people do you know who have never seen an actual, visibly identifiable nun. Or maybe you have known someone, upon seeing a nun, says something like "Oh! Look there's a nun!" Both sisters and borhters used to be able to run entire hospitals as nurses, doctors, and administrators. Just last night I was looking at the Alexian Brothers website. It was necessarily less expensive and patients were treated like human beings. Nuns and brothers don't really work for profit. It was mission to help people. This is a casualty of the mid-20th century reforms in the Church and the wider cultural impact of the times. It will take some time to rebuild the medically oriented religious orders. Some of them are dying out and have more patients than nurses nowadays.
Small clarification here:
I know there are religious orders still running hospitals. I am here referring to the armies of religious who worked as nurses.