Vartis Agrupolis is a toxic airborne virus discovered by Dr. Hans Bichenbach. 8 hours after exposure, it softens skeletal and muscular tissue of the limbs.

It was extracted from an experimental capsule that returned from Saturn's moons. The lab technician who decontaminated the capsule, suffered from this virus and a few hours before his death he spread it to six other people.

Edward Diego of the Citadel Station understood that it could serve as a discreet, slow, deadly and transmittable bio-weapon and intended to sell it to Oscar Kamar.

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