Two Liberian Ebola patients are reported to have died and then resurrected. They came back to when they were about to be buried. As you might imagine, this has caused some consternation in Liberia.
I have no medical expertise, but my working assumption is that determinations of death, at least under conditions in Liberia, can be iffy. And Ebola perhaps can put patients into a death-like state from which the patients sometimes recover. One has to wonder how many people have been prematurely buried.