JustWilhelm
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Item #: SCP-XXXX

Object Class: Euclid

Threat Level: Yellow

Special Containment Procedures: Any personnel in Site-81 diagnosed with a digestive tract infection (outside of testing) are to be suspended immediately, pending surgical removal of SCP-XXXX-2.

SCP-XXXX-1 is to be suspended 2.5 metres above the ground (preferably on an adjustable pulley) in a 10x10x5 metre containment chamber, to which an air-lock with a standard decontamination system is to serve as the only access point. Personnel entering SCP-XXXX's containment chamber are to wear full-body biohazard-protection suits (unless required otherwise for testing purposes), and should be monitored for signs of a digestive tract infection by SCP-XXXX-2 upon leaving the containment chamber for a period of no fewer than 4 months. SCP-XXXX-2 infections are not contagious and, as such, there is no need to quarantine affected personnel. SCP-XXXX-1-a should be kept in a standard safe elsewhere in SCP-XXXX's containment unit.

Despite degradation of SCP-XXXX-1, D-class personnel are not to be provided to SCP-XXXX purely for the purpose of sustaining the item. It is accepted that SCP-XXXX will continue to degrade over time.
- Ethics Committee, dated 17/03/2004.

Description: SCP-XXXX is a "Mac Tonight"1 costume head (SCP-XXXX-1) and a culture of extreme tapeworms of the subclass Eucestoda (collectively, SCP-XXXX-2).

SCP-XXXX-1 is somewhat fragile, and exhibits scuffing at its two point extremities, warping of the mask around the mouth region, corrosion of the eye sockets, and tearing at the rear access hole. SCP-XXXX-1-a are a pair of sunglasses found with the mask, and appear to render subjects immune to infection by SCP-XXXX-2. They do not exhibit the same infectious properties as SCP-XXXX-1.

Barring physical barriers such as walls, an exclusion zone of variable radius2 exists around SCP-XXXX-1, in which breathing without proper filtration equipment has shown to result in immediate infection of the digestive tract by SCP-XXXX-23, which then proceed to develop at an accelerated rate. If left untreated, SCP-XXXX-2 can grow to extreme lengths (the current record being ██.8 metres). SCP-XXXX-2 can only survive in human hosts, and have no means of reproduction outside of SCP-XXXX-1.

The typical life cycle of an SCP-XXXX-2 instance appears to go as follows:

  • SCP-XXXX-2 transfers from an as yet unknown source inside SCP-XXXX-1 to its new host.
  • SCP-XXXX-2 germinates and propagates inside the host's digestive tract.
  • After some time4, SCP-XXXX-2's growth extends to the host's oesophagus, resulting in suffocation.
  • Upon expiration, SCP-XXXX-2 exits the deceased host via the mouth.
  • SCP-XXXX-2 attempts to return to SCP-XXXX-15.
  • SCP-XXXX-2 dies and decomposes near to SCP-XXXX-16

This mechanism is hypothesised to sustain SCP-XXXX. Indeed, the object's condition has degraded during containment.

SCP-XXXX is mildly mind-affecting. Hosts of SCP-XXXX-2 have shown to deny ill health approximately 20 hours after initial infection.

Addendum - Incident XXXX-1:
SCP-XXXX was involved in an incident involving the loss of multiple personnel. An internal investigation (II-472) was launched, and the findings presented below. Note that access to these files requires a security clearance of level 3 or higher.


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UPDATE [TODAY'S DATE MINUS 670 DAYS]: SCP-XXXX-1's rate of degradation has slowed exponentially since initial containment and is now effectively zero.

UPDATE 24 Jan 2020 06:26:
18 instances of SCP-XXXX-2 were found outside the entrance of SCP-XXXX's containment unit.