SCP-150-The Ship of Theseus

Item #: SCP-150 Object Class: Keter Special Containment Procedures: SCP-150 instances retained for research purposes are to be contained within a Bio-Hazard Level 3 containment chamber, with no more than one instance per chamber. Cultures of SCP-150 are to be contained within vacuum-sealed glass flasks and stored within Site-42's infectious materials laboratory. Standard pathogen handling procedures are to be followed at all times. Any SCP-150 instances found outside of containment are to be immediately incinerated. Description: SCP-150 is an obligate parasite that resembles Cymothoa exigua, but possesses the ability to adapt to form a symbiotic relationship with humans for portions of its lifespan. Upon contact with a human subject, SCP-150 will embed itself deeply within the host's flesh. After approximately seven days, the parasite will burrow into the host and induce several physiological changes. Source: http://scpwiki.com/scp-150 CC-BY-SA License.