I'm going back through the rules and unless I missed something RAW it is only possible to die from Critical Hits or Coup de Grace. I don't see another source of death listed. If that is the case is it actually possible to die from radiation or sickness at all? Did I miss a rule somewhere?
First a reminder ...
Each time you get Rad, you check to see if you become Radiation Poisoned. This check is harder the more Rad you have. If you are Radiation Poisoned, you must make an Infection Roll (also this is harder the more Rad you have) after the Incubation period, which is one Shift for Radiation. Failing that, you got Radiation Sickness and will start to take damage. You will make this check each day to see if you get well. Each day you are sick you:
- Suffer one point of damage
- Can't heal
- and also suffer from some other symptoms. For Radiation Sickness, these are Vomiting, Diarrhea and Bleeding.
and now how to die from sickness (including Radiation Sickness) p.81:
If you are incapacitated by damage while sick, you die after another day if you're not given medical aid before then.