Just an idea:

Also: In D&D there are a few possibilities to CURE vampirisim. See here: https://roleplayinglab.com/can-you-cure-vampirism-in-dd/

So I would add a opinion to answer like: "Let's go and look for a chance to heal you from vampirism!" The gods should be thankful to our hero if he/she saves the world ... the could grand a wish ... wink