H...How it spread, maybe... The p-person whose memory we saw d-didn't seem to know for s-sure where the p-plague came from, but their h-hands were all weird, and strange foreigners were one of the p-possible causes... I think...m-maybe that person was the...s-spreader? I don't know if there's a word for that...

B-But it didn't seem c-certain, exactly.