Necrosis is a complex disease to study and research, given the layers of protection necessary for dextroluma scientists to remain safe in its presence.  This is compounded by the difficulty of studying subjects who have contracted necrosis, due to some of its symptoms.

Nevertheless, since the discovery of necrosis, researchers have persevered through these difficulties and arrived at an internationally accepted set of definitions and stages for necrosis, as well as a cure for it.

Necrosis is an infection by a parasitic fungus native to Aerius, the Elder Mushroom.  The infection of a host is primarily characterized by sterility and behaviors that will propagate more Elder Mushrooms.  There are five stages to the infection’s progression - although some researchers contend there to be six or even seven stages.  It is recommended to consume the cure as quickly as possible after infection or suspected infection in order to prevent progression of the disease.  For those who cannot access the cure for any reason, the recommendation to prevent progression of the disease is to avoid consumption of Elder Mushrooms, their spores, and the bodily fluids of other dextroluma with necrosis.