Zombies in Medieval Ireland?

You read that right... zombies.  I am uncertain what the fascination is with zombies, but apparently the fascination or fear of them has been around since the early middle ages.  The people of medieval Europe may not have called the people they treated with aversion as "zombies", but the behavior of the early medieval period suggests that they feared people would come back from the dead or spread unwanted diseases after death, at least, according an article I found at Discovery News today entitled, "Did Zombies Roam Medieval Ireland?" (16 Sep 2011)