Cryptozoologists are actively studying the Demon based Lycanthropia virus that causes the creation of Werewolves. Unfortunately like most Demon based diseases they’re not close to finding a cure. However the Werewolf virus has been found to be vulnerable on lunar eclipses. An eclipse of the Moon causes werewolf de-transformation yet they maintain their werewolf persona in human form going on serial killing sprees. During this brief period of time it may be possible for various practitioners of supernatural magic to eradicate the virus from the victims DNA. To a lesser extent seeking the blessing of a Priest while ingesting, and bathing in Holy Water during the eclipse may cure a Werewolf as well.