I'm currently playing as a wood elf and I know they have a 50% resistance to all diseases but last night I left my Xbox on for 6 hours with the first vampire you have to kill through the dark brotherhood quest hitting me, after i woke up he was still trying to kill my character so I thought surely after 6 hours I would have contracted the disease but no all I seemed to achieve was become really good at wearing light armour.
So I was just wondering if anyone else has had any problems or if you have any tips or hints as to how I can become a vampire, thanks very much =)