Petra infected by Wither Sickness
The Wither Sickness is inflicted if a person remains in contact with the Wither Storm's tractor beam or its tentacles for too long.
When a person is inflicted with Wither Sickness, he/she slowly gets weaker, and the affected part of the body slowly turns purple. The disease then slowly spreads to the whole body, and the person slowly "withers" away, causing inability to think or move.
Sometimes, a person inflicted with Wither Sickness does not get any aforementioned symptoms of the disease, but instead also starts to suffer from amnesia, and loses his/her memory. It still, however, causes the person's skin to turn darker, as well as changes their pupils to red.
Unlike the regular Wither Effect, Wither Sickness does not wear off over time and is more lethal. The only known treatment for Wither Sickness is to destroy the source, i.e. The Wither Storm. It's unknown if anything else can cure Wither Sickness.
- Most citizens who were trapped inside the Wither Storm were completely withered away, thus, they could not move or think though they were still alive.