Board Thread:Lore Discussion/@comment-7629073-20130402085627/@comment-11444045-20140131102740

I never said he/she was. I was saying if the dragonborn being a vampire lord in dawnguard was canon to the series in the next game, then yes he would have immune to all diseases.

Of course he could have an enchanted amulet or ring with resist disease 100% which would do the same thing.