2 Party members falling ill constantly

[Mizkei]

As the title says, 2 of my party are falling ill constantly. I didn't find anything in their traits or in special items which might cause it. And my best guess from where i got it would be that cave in vahnatai lands which had undead wandering outside of it. Im not sure though so any advice on this?

[Twistor]

See this discussion:
http://steamcommunity.com/app/337850/discussions/0/616199347860564100/

[Mizkei]

Oh thanks!

[Diaps]

Uranium bars or Phhryic gauntlets can make your characters fall ill. No use for the uranium bar other than to sell as cash.