Occupant's disease
The Occupant's disease is an illness caused by a virus of extraterrestrial origin. It arrived on Earth in 2047 alongside the Occupants, when the virus began its spread and quickly led to the extinction of most life on the planet.
Symptoms[edit | edit source]
Not much is understood about the virus. It is described as mutating extremely quickly, changing from person to person. It appears to be a respiratory virus, and transmission can be slowed by the use of masks/respirators and social distancing. One of the main symptoms of the virus is the expulsion of fluids through the eyes, similar to crying.
History[edit | edit source]
The exact origin of the disease on Earth is unknown. In 2047, although it had spread worldwide, it was wrongly associated with people of Chinese or Asian descent.
Despite warnings and several students with the disease, the school did not lock down or enforce isolation and proceeded with a school dance. This became a mass spreader event, and every student in attendance fell sick and succumbed to the disease - bar one.
This led to the discovery of Iris Kwan who appeared to be immune to the disease, showing no symptoms even after all her classmates had perished. As such, she became the subject of many studies and experiments in an attempt to replicate her immunity and provide a means of prevention or a cure. It is unknown whether she was immnune to the virus, or if she was infected and merely showed no symptoms. Her immunity to the disease was presumed to be genetic in nature.
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In actuality, the virus was an attempt to communicate to humans by the Occupants. After being played music on a piano, they perceived the notes as a "discordance", which they attempted to replicate in genetic code.
It is heavily implied that Iris's mother shares her immunity.