"Y-yeah." Idia got out, a little caught up in the idea of some sort of unknown, alien, disease that could happen at any moment. Then again, there's lot of fighters on the train, right? That meant lot of injuries. And none of them have seemed to have problems with illness in the time Idia's been here. So maybe the train is protecting them well after all.

Or they are just really good at looking after themselves after a fight.

"I'm sure you'll do a good job." Idia encourages after he breaks out of his stunned silence.