In a living body, aside from a general increased aggression, the Starscourge wasn't much more dangerous than the normal strain. The problem is rather more with the fact that those who die of it turn into daemons.

[Which is you know not great. Magical diseases are not for messing around with, even putting aside the fact that, if she's paying attention, Izunia seems a little anxious just talking about it.]

Doesn't respond much to anything but magical treatment, either. Antimalarials can stave off the progression, but they're no cure.