The Seeper's blood and other excrement's cause a terrible illness that had six stages.
- First Stage: Temporary mental regression, and singing nursery rhymes.
- Second Stage: Repeating the first person they see's name and dancing.
- Third Stage: Screaming and attacking everything they see.
- Fourth Stage: Deep sleep.
- Fifth Stage: Unknown, resulted in a room destroyed room and injures to those in room with infected.
- Sixth Stage: Unknown, presumed death.