Here's another Hypothesis...(2 minimum)

Which cures worked and how were they created?

I don't think the religious cures would have been successful. I think common sense would have been best. For example, eat well, get plenty of rest, and avoid stress... come to think of it, most people in Europe during the time of the Black Death would not have much to eat, would have been working all the time, and their lives would have been very stressful... everyone would have died! Really, I think that the best medicine would have come from plants and herbs.



The Research showed....

I found that changing your diet would probably have been helpful. Food that rotted easily (meat, fish, cheese) could accumulate bacteria like Yersinia pests and help spread the disease.  I also learned that burning the corpses killed the bacteria.