Per 
Item #: SCP-XXXX
Object Class: Safe Euclid
Special Containment Procedures: All instances of SCP-XXXX are to be kept in an airtight container of size relative to the size of SCP-XXXX instance to prevent spores entering atmosphere. Containers large enough for human access must be sealed with airlock. In case of instances of SCP-XXXX being located outside of direct containment, in situ containment is permitted. Containment of SCP-XXXX instances outside of regular containment location is to be carried out using high density concrete or closed cell foam to prevent spore emission. Termination of SCP-XXXX instances is not to be attempted. Application of extreme heat, mechanical stress and chemicals such as acids have been shown to cause greatly increased spore production which can make containment more difficult. In situ containment medium is to be directly applied to SCP-XXXX instances to ensure that the instance is contained in completely airtight conditions. In case of a staff member needing to collect samples from contained SCP-XXXX instances, staff member must use type A hazardous materials suit with integrated SCBA (self-contained breathing apparatus) separate to SCP-XXXX containment atmosphere. Upon leaving SCP-XXXX containment, staff member must be removed from PPE without exposure to exterior and PPE must then be contained in an airtight container. In case of any staff member attempting to change SCP-XXXX classification or containment procedure, permission must not be granted.
Description: Fully developed instances of SCP-XXXX bear resemblance to coral or fungal growth (particular likeness has been drawn to basket stinkhorn fungus, leptopsammia corals and pillar corals, although this likeness has been proven to be superficial). Instances of SCP-XXXX can vary in size from singular spores of microscopic size to a maximum size of approximately 3 metres cubed (although multiple instances in proximity may conjoin to form a larger outcrop). SCP-XXXX exists in two defined states, a spore-like dormant cyst state, or the active development state. While actively growing, SCP-XXXX instances will grow in size from spore like state to maximum size within a highly variable period of time, shortest recorded growth time is 03:24:15 while longest estimated time is over 15 years. While in active state, SCP-XXXX instances will periodically release further instances of SCP-XXXX in cystic spore state. Spore state of SCP-XXXX are microscopic in size, with most being 5 to 15 μm. Cystic state will travel in air currents similar to fungal spores and are capable of withstanding extreme conditions. Spores have been recorded entering developmental stage after being exposed to partial vacuum of below 10-6 Pa, temperatures of 2000 Celsius and various highly concentrated acids and environmental toxins.
When inhaled, SCP-XXXX spores have the potential to cause psychological effects in human subjects. Effects of spore exposure are difficult to accurately record as no outwardly harmful symptoms nor drastic psychological changes occur. Effects of exposure appear to include: Apathy towards anomalous nature of SCP-XXXX, lack of concern over containment procedures, conviction that SCP-XXXX is not harmful, reports of increased feelings of well being and contentment. If any staff member involved in containment or monitoring of SCP-XXXX displays any such effects, they are to be immediately reassigned. Exposure to SCP-XXXX spores appear have no long term health effects apart from mild respiratory irritation if spore concentration is high enough to cause accretion of spore debris in airways. This irritation is not anomalous in nature. Psychological effects of spore exposure appear to recede when subject is not exposed to SCP-XXXX spores for a period of 2-3 weeks. Reversal of effects is not accelerated by antibiotic or anti-fungal drugs.
Addendum: Previous classification of SCP-XXXX as Safe was deemed as inaccurate by administrative persons. Upon further investigation, researcher in charge of SCP-XXXX classification was found to be under the effect of SCP-XXXX spores. SCP-XXXX was reclassified to Euclid and lead researched was reassigned.
