Item #: SCP-021 Object Class: Safe Special Containment Procedures: SCP-021 is an obligate parasite of the human body. Containment, therefore, is no more difficult than containing an adult human; most cells will suffice. Item is currently housed in detention cell 217-A on subject D-139. Only class D personnel are eligible for hosting SCP-021. As long as a given subject survives as a host for SCP-021, he is exempt from normal monthly terminations of class D personnel.Object Class: Safe