Board Thread:Manga Discussion/@comment-27399549-20151214184558/@comment-27226607-20151216195020

MrButtonsXIII wrote: While DIO's kids may technically be half and halfs, vampirism doesn't seem to be hereditary as none of them show any vampiric traits. Wryyy is definitely a vampire noise, giorno's basically the only character who isn't a full vampire to say it, so there's definitely something hereditary to it.