Isholugo

The Isholugo are dangerous creatures of South African myth. They are thought to be Impundulu who have escaped magical binding and are no longer forced to serve any magic user. They have a wild bloodlust and are incredibly difficult to track. They can only be killed if they are contained and burned to remove their supernatural strength.

Citations:

Maberry, Jonathan. Vampire Universe: The Dark World of Supernatural Beings That Haunt Us, Hunt Us, and Hunger for Us. United States, Kensington Publishing Corporation, 2006.